Enable for the store to track buyer's accumulated purchase total for lifetime/period
to enable a point reward system, kind of like VIP points on S@H site. This way,
once the seller sees that a seller has purchased X amount total in the store,
he/she could offer freebies, discounts, raffle/contest point accumulation, etc.
This could be an opt in option for the seller, in case some have a problems displaying
it to their buyers, as if this expensive Lego addiction wasn't obvious already.
USA, California
