Originally Posted by philgar
640KB ought to be enough for anyone.
Don't EVER assume that a certain amount of RAM is enough. Give apple a few years,and I guarantee it won't be too hard for the machine to use all the RAM... And, what's the point of buying a $2500 machine unless you expect it to last a couple of years?
What makes you think 16 GB won't last a couple of years?
More importantly, you have to look at what most people consider when deciding if something is useful after a couple of years. If only a tiny percentage of people add more RAM to their computers after purchase, then the ability to add RAM is not important to most people.
Furthermore, I think we've reached the time when computer upgrades (both hardware and software) have slowed significantly. For example, I'm now using a 6 year old laptop - before this, I never let a computer go past 3 years. Most people I know are keeping their computers longer. I believe the reason is that for most people, current machines are more than fast enough for their needs now and for the foreseeable future. Similarly, the software is good enough to not need an upgrade every couple of years. 15-20 years ago people were anxiously awaiting the next OS upgrade because the current ones were never good enough. Each upgrade had significant changes which required more computer power. Today, the changes are incremental (in most cases). Windows 8 is basically Windows 7 with a new face. Lion and Mountain lion are relatively minor upgrades compared to, say, Leopard.
The fact is that for most people, today's computer is going to last a lot longer than any time in the past.
Now, there are a tiny number of high end pro users who might need 32 GB of RAM at some time in the future. But almost all of them would probably be buying a new computer to take advantage of CPU and GPU improvements by then, anyway. So you're asking Apple to put up with the unreliability, bulk, and cost of DIMMs because of the number of people who:
1. Need 16 GB now and will need more in the near future
2. Would not be buying a new computer during that time frame because the changes in CPU and GPU aren't important enough to justify the cost
3. The possible need for 32 GB at some time in the future would be a big enough concern to stop them from buying a new MBP - in spite of its other advantages (especially the display).
Sorry, but the number of people who meet all three criteria is probably tiny.