Those "nostalgia" machines don't really appeal to me either. They're usually kind of high priced - you can often get the real deal in great shape for the same prices I see people asking for the modern copies.
I'm not sure that people actually GET those higher prices, but I see them come up on eBay and people usually want around $150-200 for them. You can get a REALLY nice vintage Singer 15 for that much money.