Page says "starting at $137.50" and, sure enough, the Prickly Pear XL is that price. I select that option and it says that there are 168 in stock. I put it in my cart. Nope. Says it's out of stock. All the rest are full price. Ummm.... ?
I just bought a The North Face jacket on the department of goods site and wanted this sweater as a layer underneath. Bummer for me.
That is a bummer. I have had the same trouble. I think it just takes a little time for the servers to update, which is annoying, but understandable.
I believe the quantity shown on this page is what's available in all sizes, even if you select an option. The cart page will show you what's available in your size.