I want to get one for the allotment, but struggling to find one that makes it worth it. They all seem to be cheap roll up door ones that reviews say will disintegrate in 2 years, or over £500. Is there such a thing as a reasonable/mid price one that doesn't fall apart immediately? I don't want that from an environmental waste and effort of replacing so soon perspective. I asked on a public group and was told to make my own out of old trampolines, which is definitely not on the agenda! Any ideas, or am I asking the impossible?