With 90 pages of comments, this might have already been mentioned, so apologies for the duplication: a writer for The Trades put out a rather strongly worded op-ed piece on the reboot that sort of sums up my feelings:
http://www.the-trades.com/article.php?id=12473
In a nutshell he compares his reaction to the 5 stages of grief, and while I wouldn't go so far as to say I've gone through the 5 stages myself - in the grand scheme of things, DC ruining itself isn't that big a deal to me - I have found myself experiencing a couple of these, and I'd say I'm in the acceptance phase: I'm simply enjoying the comics coming out over the last few months, and then when the reboot comes, that's the end, and I'll have plenty of older comics to enjoy. Maybe I'll spend the money I'd have normally spent on Action Comics 906 and Detective Comics and put it towards some reprints, or start buying Marvel.
I came across one rather bizarre post on the DC Comics message board, from someone stating "it's a great time to be a collector" because of all the #1s were about to see come out. Anyone with any experience in the reality of comic book collecting just did a

I'm sure reading that. Plus the fact, great, all these #1s are coming out. Too bad no one ever gives a damn about #2, #3, etc. Yet #1000 would have been spectacular.
Still, just as viewership of The Guiding Light spiked when its final episode after 75 years aired a couple seasons back, I'm sure there will be a lot of interest in the final issues of the original Action Comics and Detective Comics. Even if they revert to the original numbering a year or two from now, the damage will have been done. The originals end in July or August and I don't plan to miss getting them. Ironically, those issues are the ones that will be the collectors items, not Action 2.0 #1. Bet on it.
Alex