That's assuming you're using a computer with user upgradeable RAM, and not a new macbook pro.
But if you have to buy a whole new machine every two years when they only pieces of hardware that are getting better should be upgradeable (ram & display) it's pretty disheartening.
The ram upgrade procedure for the new MBPs is backup, Craigslist, Apple Store, restore.
[1] One can't easily buy a 64GB DIMM today, but Moore's Law is swift and mighty.
It objectively doesn't make your program run better to waste RAM.
If RAM usage goes up 2x every two years but RAM and hard drive speed go up 20% in the same time period, then using more RAM when you don't need it is making programs more sluggish to start and to suspend to disk, and it's making computers draw more power while sleeping (to keep that much RAM alive -- the D in DRAM means every bit in the RAM needs to be refreshed continuously).
From what I've read, an SSD has an expected life of about 1-2 years. Aside from not being able to afford $2500 JUST for an SSD to hold my data [1], I can't fathom paying that much every 1-2 years as the drives die. Not to mention downtime and potential lost data (between the back-up and the failure).
I'd love to have an SSD. In a year or two, I probably will, as the costs will likely drop.
But until then, yes, the performance has objectively dropped.
[1] http://www.amazon.com/OCZ-Technology-2-5-Inch-Performance-OC...
Quality is measured on multiple axes. RAM use is only one of them. CPU use is another, for example, and it's often the case that reducing CPU use requires increasing RAM use.
http://httparchive.org/trends.php?s=All&minlabel=Mar+15+...
And yes, that's pure raw bloat. Sites haven't gotten richer content the past 2 years, they've just put on some weight.
Sure I don't use it for modern gaming and sure I've delegated tasks to much stronger uni machines a few times in the past but other than the occasional hw problems due to age it still works and is mostly enough...
Chrome, in particular, is generally be used for far more tabs (I have like 30 open right now on a MacBook Air) and increasingly complex web sites every year. It's easy to look at memory usage and complain, but the fact is that our usage and the size of the pages we're loading is also rising rapidly. If you loaded Chrome from two years ago and used it how you work today, you might not find the memory footprint that much better than the current version.