Motomillion for parts a bad idea?

I've purchased two items from them this past year and both items were out of stock (unbeknownst to me at time of purchase). It was not shown anywhere on the site that they were not there. The only reason I knew they were out of stock was because I emailed them to ask about the order. I don't mind waiting, I think it would just be good to know an item is back ordered before you drop a good chunk of money.

Am I just unlucky here? Have you guys had better experiences?