I personally think that the term refers to how durable a mousepad is, and how it feels moving the mouse around (different materials will have different effects on how the mouse moves, for example). If you're playing an fps vs just casually browsing, I imagine the wear on the mousepad would be important. I have no issue gaming without a mousepad, and personally haven't for a long time.. anyways, the term is probably marketing BS, however it could have some truth to it.
(note, as a marketing term, that's why I said at that price, it probably isn't. when marketing terms are thrown around, the price generally is higher anyways, and because the site is based around photos, for gifts to family.)