An increase in merchants accepting BTC is not nearly as important as the increase in consumers adopting BTC
and using it for every day payments. Merchants have no incentive not to accept something that is becoming
du jour. It boosts their cool factor (if the cool kids are doing it, well...we're cutting edge, too.). They would accept dirty gym socks if that was the new craze (and no, I'm not calling BTC a fad) and there was market for exchange.
There will be a diminished return in the BTC price boost that accompanies news of future merchants accepting BTC unless consumer adoption really kicks in. Yes, Wordpress is big because it was one of the first well known (in many circles) entities to accept BTC. The 10th or 20th well known entity will not impact the price very much if at all (unless it's something ridiculous, like Wal-Mart), but may serve to moderately bolster the network effect and brand appeal with which BTC derives its all of its value (otherwise LTC, PPC and every other variation would also be worth something).
No, the key is consumer adoption because this barrage of good news can easily turn sour if merchants start reporting how little BTC is affecting their sales. $2M a month at Bitpay is negligible (and likely unsustainable without a second round of funding in the not-so-distant future). To one who says current BTC price valuations are 'piddling', well so is the current revenue stream generated by accepting BTC (as far as I can tell, but correct me if I've read the tea leaves incorrectly).
I agree with Crazy in that fundamentals are murky at best. I'm a Bitcoinophile and am bullish on the concept and utility, but the more I read the motivations and conclusions drawn on this forum, the more I wonder how many other people are buying in after coming to the same conclusions with, it seems, a very disjointed view of market price vs adoption, and the less bullish I become regarding current price. There is certainly room to run to 3-digits.....markets tend to stay irrational far longer than we predict....and there is the chance that this is not irrational (quite possible). I guess the fact that markets tend to stay irrational longer may be a perfect reason to buy for some investors.
I agree that investors should take into account the potential for success/failure (NPV). IMO, a 25% chance of BTC succeeding is absurdly optimistic, but I realize you were simply offering an example. BTC will either fail completely or succeed completely, and the goals are monumentally high. I hope complete success is higher than $1500 per coin because if it's not, we are definitely in a bubble. If complete success = $100K or $1M (or whatever) per coin at some given time in the future, as many have stated, and there is a 25% chance of that success, this would be a no-brainer....BTC would be the lottery ticket of the century. Poor souls spend hundreds per month on lottery tickets with much much lower odds. I think the odds of success with BTC are much much lower than 25%.