I don't own either of those machines but I would be nervous buying from a website that just says they come on that doesn't mean they sew. If you have a sewing machine repair shop or a shop that sells machines you could check with them for a used machine. I just bought an older Pfaff from a local Bernina dealer, who also repairs machines and I was able to try the machine and his other trade ins before I decided which machine I wanted. The machine was a trade in from a regular customer so he was able to give me the machine's history, I only paid $200. Or I would suggest buying a new Brother, I would not purchase a new cheap Singer, several members on here have commented on how their cheap Brothers have held up. I think you are right, not buying a new expensive machine until you figure out exactly what you need. Also, if you decide to take classes or go to a retreat you will need a light weight machine and you'll have a back up if you decide to upgrade later.