They get a catalog from a distributor and setup an auction using the catalog image.

Now you as a buyer assumes they actually have the product they are selling or at least will be able to deliver it in a timely manner. This is where your WRONG.

When the auction ends the seller waits for your money to arrive, when you get your money to them, then they order your product and then send the distributor there money.

 The distributor gets there money and in 48 hours you product is drop shipped to you or worse yet sent to the seller and then has to mail it to you.

If this is all done in a timely manner it takes 2 weeks at best, but if the seller waits a couple of days to send the distributor there money or sends them a personal check then it takes even longer.

I have waited 30+ days twice!! No more!! you don't have to suffer the hell I did if you just keep this in mind.

How do you know spot this ebay seller? 

1    Feedback, Look for words like SLOW DELIVERY

2  Look for wording like allow 7-14 days for delivery

3 Look for a actual picture of the product, not a scan form a book. My policy is No Picture No Sale!

4  Ebay Store, not all people with ebay stores have slow delivery I'm just saying this could be one of the signs.