I wasn't referring to the rugged bags. I mean the ones that are made of something similar to large trash bags, and that end up getting small holes in them on the first use about 10% of the time.

Rugged bags would be OK if they actually got reused. Canvas would be drastically better. I usually go for paper bags (they make good kindling, and are reusable a few times), but some chains here in California seem to be phasing them out in favor of the thick plastic ones.