Theres a difference though between some things. I've been around for every transition.
Floppies were well and truly gone by the time of the iMac. Good move by Apple there.
Optical Drives don't have a real replacement - still very useful, Apple just decided they weren't -_-. Still the easiest & Cheapest way to have large numbers of TV shows and Movies. Also the easiest way to distribute things like home movies. iTunes tv shows are nice, but not if you have a large collection. Streaming from iTunes is also a poor thing for many due to slow internet. DVDs are pretty universal. I can take them places and play them. Stuff in iTunes, not as much (without major stuffing around).
The Classic Macbook Pro is still one of Apple's best selling Laptops, and I understand why. In doing tech constantly, there are still a lot of people who use Optical disks and need ports. The Mac rumours audience are the early adopter sort, but many are not.
Now I don't want Apple to put optical drives and ethernet ports back into Retina MacBooks. All I want them to do is continue updating the Classic Macbook Pro to allow for choice.
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I hate that Apple has removed functionality from the iMac and Mac Mini in this way. Especially just to make the iMac thinner - its unneeded.
Laptops are more understandable. If I had to use a Retina Macbook or Air, I'd be carrying around an external Optical Drive, a ethernet adaptor, and a firewire adaptor(though I use the firewire less these days) and a portable hard drive to make up for low internal storage - starting to be a bit non portable.
Luckily though I have a 2012 cMPB which does all of this, but internally.
i forgot to add the ir sensor in the new imacs. i mean come on