I don't see how this would affect WGT profit, I have lvl 25 clubs that I want to gift to a friend that will never buy them and then I will buy new ones for myself, but being that the new clubs are not a big upgrade I'll just keep using them, so in turn this will lose them the 50 bucks I was going to spend. Or they could setup a used store and discount the older clubs for people that can't drop 50 bucks.
And people would more accounts would still have to buy the clubs so they can gift them.