Before you buy, check around at stores in your area that do resales. There are two sewing machine store here that sell new and used machines and no matter what you buy, you are entitled to free basic lessons. The lessons cover machine basics, stitches, zippers, button holes, simple pillows, etc. You can retake the lessons as often as you need to "get it."
I don't know if this is something offered in your area, but it's worth a shot to try it!