So, name one, just one, nep you'd like to grow but can't.
I can provide highland temps fairly easily, but lowland conditions I cannot. So that makes true lowlanders a no go for me. Honestly, I don't like many lowlanders, so I don't mind much.
But, their is one lowlander I'd love to have : Northiana. A mature northiana makes what I consider to be among the most beautiful pitchers in the genus. The uppers are spectacular. I love the gaping mouth with the bright, flared peristome. I understand they are fussy to begin with, and without some major effort, I cannot give it the temps it needs.
So, is there one nep you covet that's off limits?