I purchased the permanent scroll for the Mistlock Sanctuary pocket plane. Unbelievable that I held off buying it for so long. Now I'm spending all the time in there crafting and messing around with my banks/bags!
Recently the Anet developers also fixed the portal to allow you to go back to the previous map! That's like the perfect pocket plane and ultimate convenience!
There are TONS of people in the pocket plane though. It's on sale right now so obviously a lot of people are jumping on the sale.