Is a heated bed an essential component for printing (difference between Creality Ender 3 or Anycubic Mega Zero)?
I used to print PLA with my heated bed turned off, since it was deforming when heated.

It works perfectly fine, only detaching the print was terribly difficult.

I would not buy a printer without it, because even a weak bed reaching only 50°C gives you many more possibilities.

I mean, you could use it to keep your coffee warm while you work at the computer, or to warm up chemical solutions to make them react faster. You can also use the bed to shake the solution!

Go for a heated bed.