There's indeed little correlation between cost and quality, though I'm sure the economics of small batch distilling are always going to nudge the cost up. Part of the fun of my gin habit is just tasting different ones (same for beer). I don't think I've had a truly awful one, plenty of indifferent, and several very good. I think if I plotted them on an axis against price they'd be all over the place. The pleasure is in the variety. I confess a sneaking liking for both bog-standard Beefeater and even the bargainalocious Larios in a plastic bottle (not the rosé one though, that's a bit weird and artificial and best fed to guests). I think I draw the line at £60 though, I don't see what you can do to a gin to justify that much. Unless it has a weasel on the bottle, and it's a posh bottle, and you have a mustelid-themed house.