Yeah true, but if you go look at most websites right now, which is what OP will do, they're not all there. Good point to bring up though.
XPEDs are great, they're thicker than the thermarest but the 20D fabric vs 30/70D on xtherm has always given me pause. Buy em both and see which is more comfortable, take a patch kit (superlight, do it with every brand).
Understood on fabrics. I've been exclusively on EXPED mats for almost 7yrs now and have yet to puncture a UL 20D mat. It happens for sure, but EXPED is more than happy to repair the mat if that happens, simply ship it to them. So long as you choose your sleep site well and keep your tent for clean you should be good to go