Any professional service costs money. Whether it is too expensive will always be a matter for the individual. It is important to weigh the savings against the costs. Having a designer do the leg work frees up your spare time to enjoy as leisure or dedicate to earning money in your job. Interior designer's have access to fabric, furniture, lighting and accessory suppliers who supply only to the trade plus they know where to find them and who will be best to use for your project at the outset. This, in turn, gives the client access to a much wider selection. It means you get what you want in a shorter timescale and you are likely to be happier for longer with the result.