The survey isn't strictly indicative of MMORPG gamers; it was taken from over 2,200 players who were either part of PlaySpan Marketplace, Facebook, or purchasers of Ultimate Game Cards. Still, the results are fascinating, as a whopping 64% admitted to spending money on cash-shop items at least once a month, with 9% going so far as paying for virtual goods on a daily basis.
Other statistics from the survey are equally interesting. PC gamers spent an average of $37 a year on virtual goods, and PayPal is by far the most popular method of payment. Oh, and the most-purchased good? In-game currency. (There, that shouldn't be too controversial, right? Right?) You can read the full survey results over at VentureBeat!