It kind of depends. If you are getting a cheap, low quality one from a ghetto seller, it might be around 1-500 dollars. For an actually decent suit from a decent seller, it would be 1000 minimum. Of course, that is for a full suit. A partial will cost a lot less, but can still be around 1-300 dollars for actually nice ones.
I still think that is low balling it. From what I have seen a good main brand full suit or digigrade can cost from 2k to 5k depending on add ons. I would safely assume average is about 3k or 3.5k. Partials are far less so I would maybe start with a head and paws and tell the maker you might be interested in the full suit part at a later time.
I think you can find good full suits out there for around $1600-1800, but they can range upwards of $5000 depending on the maker and the detail you are looking for.
I bought my full suit from a known maker for ~$4000. This is about average you're going to pay for high quality and good service. Thunderhowl charges about this much as does Don't Hug Cacti. If you go with smaller makers there'll be the benefit of having it cost half as much but it might be lower quality and run the risk of being scammed if they're very unheard of so always do you're research first
Linx Aether - www.phxdragon.com
Desert Fox - www.etsy.com/shop/FoxApproved
Matrices - www.matrices.net
Sparky - SparkyPics.com