Well, I'm not a breeder myself but I know that this is the price range for pedigreed kittens. If they're show quality or of a rare breed they could cost up to a few thousands!
I don't think you can get a purebred for 100$, unless it's from what is known as a "backyard" breeder. But then you have no papers and generally the kittens are less healthy. Professional breeders put a lot of thought and effort into breeding, to avoid genetic faults.
They usually provide a health guarantee and will replace the kitten if there are any health problems. This can be very important in the case of purebred cats, as the risk of genetic faults is slightly higher.
How about adopting a rescued adult Abyssinian? There are plenty looking for homes and I guess it would be less expensive. Older cats can make wonderful pets!
You can always go to the local shelter and look for mixed breed kittens with the Aby or Bengal look. I'm sure you'll find plenty of little tabby leopards looking from homes.
Best of luck!
By the way, this forum is for all cat lovers - breeders or not. You don't have to breed or own a purebred - you don't even have to have a cat to join in!
I bet most of the members here have sweet mixed-breed cats. I have two and I love them sooooooo much!