While I don't like it one bit, I can at least understand SOME rationale in the claim that FireWire is more of a "Pro" feature than otherwise. However, there is little justification in similar claims for the IR port or SD card reader.
Given that IR ports and remotes are increasingly common on computers less expensive than the MacBook, it seems unlikely to have been removed to cut costs or keep a given price point. It also seems reasonable that a fair amount of its use would come from people using the remote to listen to music via Front Row or iTunes, or changing slides in a presentation (possibly one in a college classroom), none of which is a strictly professional use, so the argument that it is a "Pro" feature appears to be unjustified. So why was it removed? Was it to upsell to the MacBook Pro? Or was it a sacrifice of the form of the new design over function? Whatever the reason, I don't think all of the people complaining about its loss are suffering from a sense of entitlement.
If Apple were going to include a card reader on any of their notebooks, I would have though it would be in the MacBook rather than the MacBook Pros. This could be a result of my ignorance of high-end cameras and such, but so many of the little point-and-shoot cameras out there use SD and SDHC cards that it makes more sense to me to have one on a consumer-oriented machine than one intended for professional use. As with the IR port, the fact that so many inexpensive computers do have card readers (sometimes several of them for the various types of cards), it seems unlikely that it was left off to cut costs or keep the price point. If it was sacrificed for the form factor, that is a shame. If it was sacrificed to upsell the MacBook Pro, that is even more of a shame.
I understand that Apple would like to create a distinction between the MacBook and 13" MacBook Pro, but they're going about it in what is to me an odd way. Customers who are looking to buy a computer for their jobs may have specialized needs that a standard MacBook doesn't (and maybe shouldn't try to) meet. For example, my work as a student (which will hopefully eventually lead to similar work professionally) frequently requires that I write and test simulations that are intended to run on multi-processor machines. Everything I write must be tested on one of my university's clusters, but waiting in the queue can be very time consuming. It would be a great help if I could do more extensive testing on my own machine prior to submitting to the queue, but I would need something with four cores. Since these are projects in regular, required coursework, I am not eligible for any kind of grant to purchase something like a Mac Pro, which in all honesty would be far more than I need given that I have access to the clusters for anything that truly requires power. Since portability would be more beneficial than sheer power, I would be just fine with a moderately-powerful 4-core laptop. If Apple doesn't want to offer one, that's fine, but this is an example of just one option that is specialized and not for everyone that would be a legitimate distinction between the consumer and professional models.
I'm sure that my situation is not unique. To cater to specialized needs, Pro models should be offering options like a different selection of GPUs or more dedicated memory in the existing ones, higher-resolution screens, panels with greater viewing angles or color fidelity, 4-core processors or faster variants of those currently in use, extra ports, or Express Card slots. These are plainly obvious ways to separate a consumer-oriented model from a professional-oriented one. While we see some of those in limited form, we more often see artificial distinctions that seem arbitrary or even pointless to many, which is in my opinion where at least some of the ire apparent on this board may be coming from.
The poster who mentioned leather seats and a moonroof has it right when it comes to the true distinction between the models: luxury. Aluminum bodies and arguably sleeker styling on the MBPs are not something that will help a person do a job any better than plastic, however they are a sort of luxury and serve to make the MBPs a status symbol. I like anything I buy to be aesthetically pleasing, so I'm very happy that Apple offer a good design; however it should not be a substitute for the options that really do make a machine distinguished for professional work, and removing everyday options like an IR port or SD card reader from the base option to make the MacBook Pro models seem like better deals shouldn't fool anyone.
In fact, since the MacBook Pros don't really offer any specialized features that would make them better suited to some professional use, maybe they should just rename them MacBook Lux? If everyone is clear that they are intended to be the equivalent of leather seats, maybe fewer people would be upset when Apple makes this sort of change to the lineup?