Several years ago I splurged and purchased myself an Original Prusa i3 MK3 kit, at the time I had an original Kickstarter Robo3d which I had mixed results with and was getting tired of its issues. Life went off track and the MK3 kit has sat in the shipping box ever since.
I’ve got the itch to get back into the hobby and am wondering how I should proceed. Build the kit as is or purchase one of the upgrade kits? Or something else?
Money is a bit of an issue but I do have several rolls of Prusa filament still sealed so I should be able to get many prints with stock on hand without any additional spending.
Obviously I’ll need new gummy bears…
After looking at the upgrade options (and shopping with your wallet, not mine), I’d say buy a MK4 kit. You’re in a fairly unique position that you aren’t taking apart a working printer; you’re getting a new printer with 2023 electronics and motors for a discount.
However, if sinking that kind of cash isn’t wise for you right now, then build what you have! Or, pick up the MK3S+ upgrade kit for $50USD. MK3S+ is a reliable workhorse, and mine won’t be retired anytime soon. It still prints PETG as well or better than my X1C, if a little slower.
Good luck and have fun with it!