My personal preference is for a vintage machine with none of the fancy stuff on it. They are wonderful for piecing and I've done quilting of up to twin size on my Featherweight which is a smaller model but still has a larger throat than many of even the most basic modern machines.
At some point I do want to get a machine with some additional features, but until I decide exactly what features are most important to me I'm not going to spend $ I could more easily use for more fabric!
Good luck on your search.