I have been restoring a 1950's Necchi BU Nova and have learned a lot about sewing machines in general along the way. If you don't need so many stitches, I would suggest looking on Craigslist for an older machine locally, or cruize your local thrift shops and try this yourself... I traded my Kenmore for the Necchi so there was no net money out of my pocket.
Be careful though, older machines can be addicting. All that black and chrome just does something for me...
Alternatively, depending on your current machine's capability, you might just need to clean and oil it - maybe make a couple adjustments along the way.
Good luck with whatever you choose to do!