i like maltese and west highland terriers :) since i have these :)
i'll give you a small description of both:
maltese-my maltese has LOTS of energy. she loves to play play play. she likes to climb over everything. she is a small dog, she weighs 4 pounds. she is very smart, smartest dog i've ever come in contact with. very loyal dog, will probably attach to you or one person in your house, and love you so much. maltese have very interesting personalities. my maltese talks to me all the time. like i said, she is very smart. sometimes if i tell her no, she'll look at me, and like give a little bark, and go back to what she was doing. haha. however, she is very well behaved, and this dog breed is very easy to train. she is also an excellent watch dog. these dogs have little health problems, and live for a long time. however, something you may want to consider, is you will need to brush her hair daily, because they have thin human kind of hair, and if you don't take care of it, it will knot and she will have to get shaved. (not actually all the hair, but its basically like when a guy gets a buzz cut) and they have tear staining. my dog eats avoderm, and it helps with the tear staining. but, you also have to wipe her face daily with baby wipes, because of tear staining. if you have time to do these things, this dog is a great dog. roughly, these dogs costs like 400-1000. average probably 500-700. it all depends where you live and stuff.
west highland terrier-really sweet dogs. i've had two of these. they are mellow, cuddly dogs. my dog just loves to cuddle and be petted. great lap dog. my westie weighs 15 pounds. can weigh up to 20 though. this is a great chill dog if you just want a pet that will love you and is adorable and likes to cuddle. my westie require little grooming. of course, i have to take her to the groomers for nail clippings, and hair cuts, but i don't even brush her at all, and she gets no tear staining.
both my dogs are very healthy. my maltese does have some skin allergies, but that's it. both are great dogs.
i was considering getting a pomeranian as well. i don't know much, except they have lots of energy, and the grooming is very extensive, if you want them to have the fluffy look. apparently, barking is a problem with them if you don't teach it correctly. i also remember reading they can have a few health problems as well. but you'll have to look more into that. oh & this dog sheds. which is certainly something to consider....
hope this helps
check out dogbreedinfo.com very helpful website, and its what i used when i was looking for a dog.
none of these dogs are going to cost you over a 1000 dollars, if they cost more then that, its a scam. its all going to be anywhere from 400-700ish.