Snowman, good question. Some of the money not spent on DRMed and restricted stuff will have gone to others e.g. for me one I switched to a webscription instead.
Some people will do the getting around it thing. Some may find another shop to get it from. So you'd have to estimate a proportion. Rate of purchasing is accelerating, too.
I can't really be bothered messing around either, especially if it might involve the bought it but can't download it have to ask for refund crapola. Easier to read something else, or find it elsewhere more quickly, or buy something that doesn't have this problem.
Regardless, the pirate costume will be more popular this Halloween I think.