I agree.  Like other sellers (either at ebay or 
privately) I don't consider a cel sold until it's 
paid for.  I've had people back out of deals at 
the last possible minute on cels that they 
offered $2000  for.  I think most sellers will 
put a cel on HOLD for someone for a period of 
time.  Now this isn't to say that HobbyShopK 
doesn't have it's problems.  I've hear of a 
number of incidents that they've actually 
confirmed holding a cel for someone and then sold 
it to another.  Personally speaking, they've sent 
my cels to the wrong address and have wrongfully 
cancelled by bid at ebay b/c I didn't pay for a 
previous cel where the reserve price wasn't met 
(and I never agreed to buy the cel outright).
So all in all, you win some and you lose some.  
It's all a part of cel collecting and should 
really be put into some perspective.  (Guess with 
my aunt dying in a hospice care center gives me a 
new view on life.)