I have an eMachine desktop (EL1352) with Windows 7 that works fine. I have to upgrade to Win10 by Jan 20 and have been told that I should buy a new computer. Does this make sense?
Yes, most definitely. That pc only has a single core processor at 2ghz and max ram is only 4gb.
Make sure you get something with at least 8gb of ram. If you can let us know where you would be buying it from, we can post links on what would be a good pc to get.