I also have a miniature doxie. My husband got him for me as an anniversary gift and paid $250. It seems like a lot of money, but #1 it was a gift, and #2 we had bad luck finding a a small dog to adopt. We made sure we had a reputible breeder, not a puppy mill. In fact the parents were on site this was the dog's first litter and then they had her spayed.
We got him when he was 8 weeks old. My oldest child was 2 and my twins were 8 months old. It has worked out beautifully. The kids are not rough with him and he loves and play with them (now the kids are 5 and 3 years old).
He has a very good temperment, and the breed is know for their good temperment, but a lot of small dogs, are not good around children unless you raise them with them from young puppy age (8-10 weeks). They will snap and bite from being nervous, especially if they were ever mistreated or mishandled (as many for adoption dogs are).
As far as grooming, I have a long haired doxie, who only goes outside to do his business, I bathe him about twice a month in Summer and once a month in Winter. I brush him but because he likes it, not because it is necessary, his hair doesn't matte up like some breeds. Dachshunds are also on the list of small dogs that don't shed, although all dogs shed some amount, just like us humans do. :)
Here's the list.
Small Non Shedding Dog Breeds
Shih Tzu, Yorkshire Terrier (Yorkie), Maltese, West Highland White Terrier, Dachshund, Bichon Frise, Miniature Poodle Italian Greyhound, Border Terrier, Cairn Terrier, Havanese Miniature Schnauzer, Norfolk Terrier, Silky Terrier, Welsh Terrier, Boston Terrier, Scottish Terrier, Chinese Crested,
Australian Terrier