They must have been smoking something strong when they came up with those prices for the WGT elite products in the Pro Shop!
500,000 credits just for basic customization of an avatar!
300,000 credits for basic customization of a golf bag!
My favourite - 100,000 credits to talk with MisterWGT on the phone for an hour?!
Regarding the idea, personally I don't like it. It's too expensive and tier shouldn't be a factor for buying an avatar.
On the topic of avatars, I do think there's room for more products and just posted a suggestion here.