I have talked my wife out of us both nearly impulse-buying a mini greenhouse at Costco multiple times.
And the worst part is, I regret it. We need a greenhouse now and greenhouse prices are through the roof! I can't afford NOT to impulse buy a greenhouse at Costco 18 months ago now! I'll never make that mistake again.
I got a Costco greenhouse a few years ago, sorry they're overpriced now - I enjoy mine more than I expected and I thought it'd be fun.
Sometimes you just have to trust your Coscto instincts.