FYI .....I bought a Brother XR-7700 from Costco for $139 with free shipping. It's lightweight and comes with all the bells and whistles including a walking foot. I'm very happy with it and it weighs less than 20#s. Only drawback is that it does not come with nor can you purchase a straight stitch plate for it.
There is a refurbished one with free shipping from Overstock.com for $136. It says it's blue but the color is really a lavender...