How did you find this price? Did you use the mobile site exclusively?
Back on page 45 the CAG RaysGame posted two direct links to the XL pages and I bookmarked them and check them once or twice a day. I noticed upon finding that 3DS XL I listed and the one I purchased for myself yesterday that they only came up if you went directly to the page because if you did a regular search they never came up. So your best bet is to use the links he provided if you really want one. Here they are:
3DS XL Red/Black $114.99 http://www.cowboom.com/product/1320001
3DS XL Blue/Black $119.99 http://www.cowboom.com/product/1193097