Opinions on permapetting collectibles (for sale)

[Nissa Nightfire]

Hello all! I'm a long-time kittycats lover and collector, but have been out of the loop for a few years. They have lured me back, pesky devils

If you are inclined to share, I'd love to hear your opinions about whether it is more typical/desirable to permapet a non-breedable, collectible (costume/LE) cat before selling it, or to sell as-is and give the new owner the option to permapet or feed (or store, I suppose)

I can imagine thoughts on both sides, but would appreciate hearing from folks much more seasoned than I!

thanks for any insight~
Nissa