Are cheap polycarbonate greenhouse kits actually worth it?

Reviewer consensus is 'yes, with caveats.' Multiple long-term owners on r/Greenhouses report 2+ years of service from sub-$400 polycarbonate kits, including survival of 60–80 mph gusts, but only when anchored to a wood base or rebar-pinned foundation. Owners who set them on bare ground or skipped caulking the panels consistently report panel blow-outs and leaks.