I went to Flynn's Carpet Cents recently because I needed to re-carpet a single room. I was happy to see that they had a large selection of remnants, because I wanted to spend as little money as possible.
I was able to find a very nice remnant for a great price. The salespeople were very friendly, and helped me find the best remnant for the room I was having re-carpeted. I was able to get the remnant installed for a very reasonable price, and only had to wait a couple of days for installation.
I would definitely recommend Flynn's Carpet Cents for anyone needing to buy a remnant. I don't know what the pricing is like for their regular carpet, though.