You're a bad influence Steve...
Ever since I saw this thread I've had the bug to get one.
Spousal approval was revoked as soon as she found they were for indoors
....
I bought one regardless from ebay
after checking whether there were spares available.
Most impressive, I've already had 15 minutes of fun and not broken anything, managed to hover for quite a while, even flew around a bit.
The only problem is the long charge time, almost 3 hours.
I've got a fuel driven Hirobo Shuttle (bought second hand and never flown) in the garage with a broken part on the head, I have the bug to get that running now.