Yeah I understand that when they switch to free it's most likely a last resort to recouperate some cash they've put Into their game, and in the grand scheme of life it's not a big deal and while I do sometimes feel a bit cheesed off, it affects the dev much much more than me. I can carry on with my life whereas these apps and games often are the devs life and they have a bigger struggle. I've only been on ios for a year and the last few months price drops, freebies, and switches seem to getting more and more frequent and it'll probably continue to do so,mso I know when I buy something there's a decent chance it could go on sale soon, it doesn't stop me buying though, if I want it I'll get it.
Depends on the price drop. $5 to $3 is okay, but I would be spewing if the game I bought for $15 becomes $5 soon after.