I bought it and I don't feel bad at all. It has a buttonholer! Plus any guilt I had was assuaged when I found the machine. One of the employees was holding it at the sewing counter. I asked if there were any left and she said she was debating buying it or not because she wasn't sure if she "really needed another one." So I told her how I didn't have one at all and this sale was my shot at finally having one again and she promptly put it in my cart.
It's the first new sewing machine I've ever owned. I am so freaking excited.