The whole walmart thing is a red herring. There are other places to buy cheap wicking tee shirts. Target, Costco, sporting goods stores like GI Joes, Big 5, Sport Chalet or whatever chains inhabit your area.

$117 may not be cheap, but it's a pretty good deal on a jersey that normally retails for ~$185.

Sierra's got affordable synthetic stuff too. I'd tend to avoid cheap wool myself, the comfortable stuff is kinda expensive for a reason--especially today w/less demand and so less production.

Canari Cruiser Cycling Jersey - Short Sleeve (For Men)

I was surprised when I first found out they carried so much cycling gear, I was used to buying barn jackets and the like from them. I'm lazy and like mail order.