I'm a free member, so I expect my opinion to be seen as null and void to say. But I'll say it anyway.
I don't buy clubs for two major reasons:
a. Better clubs wouldn't improve my rubbish skills
b. I don't have the money to pay to new clubs
I do have one upgraded club though, that I got though my tier upgrade. It's a driver, and gives me an amazing 5 yards extra. Not a lot, but meh. It was free.
Anyway, back on topic. It is a person's choice to buy something from this game. Yes, it is in BETA, but that shouldn't mean anything. When GMail was in BETA (and was for 5 years, too), people could BUY, with their money, extra space. People did so, without even thinking about the whole BETA part.
WGT needs the money it gets from players in order to get out of BETA in the first place. More clubs sold = more money. More money = More courses etc. More courses = More players, and more players = more clubs sold. This cycle will keep going until one thing happens:
a. WGT is rich enough to bring itself out of BETA
b. Something breaks the cycle, and therefore WGT is doomed.
It is a win-win for most people. They get better clubs, and play better and as such have a better experience, and WGT stays alive for another day. Sure, they will be the odd person not happy with what they got, but that happens in every business in the world. As the saying goes:
'You can please some of the people all of the time, all of the people some of the time, but never all of the people all of the time'.