Don't worry about them. You are the one paying.
Decide which feature is the most important to you. If expense is the biggest problem, then consider shopping in online stores. You can let your maids choose their own dresses, as long as they stick to a color of your liking,Please keep in mind that not all dresses are flattering to all body types. Try dressinwedding.com! I have a friend who was a bridesmaid and her dress was from dressinwedding- they are reasonable and cute.