A brand new inkjet printer with scanner can be as cheap as 30 €. We all know the "scam" they put in it. The ink cartridges hold maybe only 20 % of the amount you get when you buy replacing cartridges. And the cartridges cost about as much as a new printer. The printer price must be dumped somehow to get you hooked.
So, what parts can you find in a printer? Two stepper motors at the printer module and a third one at the scanner module. Some timing belt, some cogged pulley wheels. Some steel rods. Positioning sensors. If you are clever, you might even find the stepper driver IC. Not to mention the power unit, which probably provides lots of amps to the motors at some 24 or 36 V. Or just 7 V, as on my old Epson inkjet.
I have a bunch of old printers and typewriters waiting to be turned into art plotters. From some of them I just pick the parts to something else. Some of these I bought for 5 €, some are my own (like the Epson with a useless Macintosh ADB interface).
But if I hadn't these old devices, I'd strongly consider buying a cheap new inkjet printer for my plotter projects. Not only have they the motors and other stuff I need (and probably would have to spend more money on, if I ordered the parts separately), but the setup with steel rods and timer belts and cogs and whatnot, is usually ready there. I can re-use the setup, having the printer head moving back and forth holding a pen or a brush along the x-axis, and having the paper feeding mechanism going back and forth along the y-axis.
But if you get excited by this idea, don't count on that every new printer has stepper motors. They might have ordinary DC motors with encoders (at least according to some post I read here), which might be trickier to turn into a plotter.