People always want to condemn someone for spending their own money on WGT.
I think of WGT as entertainment and pretty cheap entertainment at that. If you never win anything, do any surveys, etc. you can still play pretty cheaply. Full set of clubs are probably in the 8,000 credit range and should last at least a year. Three sleeves of mid level balls are about 700 credits should last a week or more. That combination of 8,000 credits for clubs and 700 x 52, roughly 35,000 credits for balls would come to $430, throw in putter play, etc. and lets say you spend $500 a year. That is less than $10 a week, basically the cost of one lunch a week.
Go to the movies, you pay $8 for a ticket and $12 for popcorn and a drink so $20 for a single movie, if you go once a month that gets to $240.
Can you justify spending that much on WGT, that is up to each individual and no one should be ashamed to spend their own money if they want to nor should they feel obligated to spend money that they don't want to spend.
It's a game, it's entertainment, it can be free or expensive. That is all up to the player.