Annoyed with Dantes

If I was running a business, and someone bought a product that I didn't have, I would contact them saying that I don't have the product from the manufacturer that I had advertised, but I do have a product from another manufacturer at a lower price, or you can wait 8 weeks until the product that you paid for is available. I would DEFINITELY mention the difference in price and possible quality, not failing to mention the difference in price or quality
Why do I feel like a bad guy for being annoyed at the way this person handles this situation?

So I get an email today from them, asking if I have a preference of manufacturers, as they have pui and legendary, that it'll be 8 weeks to get anything from legendary, but they have pui in stock.

maybe its common for people to be stuck on a manufacture and he wanted to see if you were stuck on legendary or would you consider another brand before getting all into that.. maybe he just forgot to say anything in the email.. it is a sunday and i'm sure he has life going on.. you should feel good that he got a hold of you at all over the weekend...