If the rumor is true that the new 32GB Nexus 7 is priced the same as the 16GB model, what do you think they will do about us? Will they give us a free upgrade or something? More realistically, a gift card?
I don't know about you, but I went in to a store thinking that, at the time, a 16GB tablet with a nice screen and a quad-core processor was a pretty damned good deal for two fitty, and with 25 clams back in store credit it was an awesome killer deal. I've enjoyed the heck out of my fondleslab for a month or so now, and have absolutely no regrets at being an early adopter of this fine bit of gimcrackery.
The fact that time has passed and better deals may (or may not) come to pass in the fullness of time does not mean I feel entitled to a change in the terms I agreed to. If Google releases an update that locks out 8 of my 16GB, then by hell I want $50 to "downgrade" to the 8GB model. But I've still paid $250, and I still have a 16GB fondleslab of awesomeness. Those were the terms I agreed to when I bought it, and those are the terms I accept.
I don't get it - this is electronics. Something faster, cheaper, lighter, shinier, better WILL come out in a few months, no matter what you buy and no matter what you do. This has been true since my very first computer (a Texas Instruments TI-99/4A!), which I paid for by saving up paper route money.
The only answer is to wait forever and never buy anything electronic, if the fact that something shinier and newer and probably a hell of a lot cheaper is coming soon will bother you so much.