I was talking with a gardener of 45 years (age 70 or so) who bought some weed membrane 20+ years ago, cut it to fit different parts of his allotment, burnt holes for planting through and just moves it around as he rotates his crops, using the same holes every year, and he spreads compost after rolling it up to move it somewhere else. I think he rotovated though, hence he needed to suppress new weeds every year!
I have never used it myself but there clearly are membranes which last well, it is probably worth paying a little more.
