Here is something WGT may want to think about.
I agree, renting a club is a great idea. However, if you don't like the club, then you are only out the rental fee. But, conversely, you rent the club, you like it, now you want to buy it. Now the player is out the rental fee plus the full purchase price of the club.
I think a good compromise would be to apply the rental cost towards the full purchase price, assuming the club you rented is still in inventory. WGT, still makes money on the full purchase price of the club, and the player is not out of pocket on the rental fee.