Thank you all for the suggestions!!!
After doing way more research than I should have.... I have decided to hold off on buying a new machine for a bit and save up some $$. Both of the Singer machines had the same size throat as my current machine, so with the exception of more stitches, I wouldn't really be upgrading much.
I've got a couple of photography gigs this summer, so I'm hoping I can throw that money into the pot and buy myself one heck of a machine