Yes, if for some reason you wanted your read/write speeds to be specifically around 80-100MBps, then the 5400 rpm will be best equipped to serve that purpose.
Keep in mind that most of the people commenting regularly use pure SSD or maybe fusion drive, so they are let's say... "pampered" with the new speeds. But fact is except on dedicated computer forums, people are generally quite happy with HDD technology. Yes, SSDs are the future, the same way we might be using RAM as storage in the future, as it's much faster yet than SSDs. If you don't know what you're missing out on, then it's really not so bad, even then... we're talking about shaving minutes off of your computer usage every week, or every month. This is not where everyones interests lie.
edit: although i agree with everyone about the Apple premium prices. I would expect spinners as a base in 500$ PCs, not 2000$ iMacs.