I've noticed lately that more vendors/companies are accepting Bitcoin: Microsoft being one of the latest and largest.
As far as I can tell, though, these companies seem to (mostly) immediately convert the currency into "real" money at the current exchange rate, and the transaction is often only completed once your Bitcoins are sold.
Again as far as I can tell (with my limited knowledge of economics), this will increase the Supply of BTC on the open market (more coins being sold) without particularly increasing the Demand (people without BTC are likely to just pay cash, rather than going through the hassle of buying BTC with cash to use with the vendor)
Does this mean that as more companies accept BTC, the value will drop?