-the indestructible accordion one is about 60bucks, 2cm thick, 400g
-indestructible closed cell roll up ones (bulky) about 25 bucks, 1cm thick (ish)
-and then the self inflating ones start at about 50, and other good ones under 100, at different weights
-and lighter, nicer ones are 150-250
so basically, you try diff ones out and choose your budget.
but one night in a hotel or a few restaurant meals will nearly pay for a reasonable one that is hands down going to be more comfortable than a yoga mat.....