Sorry, forgot to mention, I handwired and reused key caps. I have a lot of extra sets from liking keyboards for a while lol.
I also used a pi pico which took some extra tlc but saved a good chunk of money (1 pico is 7 dollars and only one is necessary).
I get it, but to be fair, the keycaps I already had were only about $20 on Amazon. So if you want to be pedantic I spent $60 total. Still beats the $300 plus for the ergodox. Also, if you really want to get into it, it took me around 25 hours to fully complete since I opted to hand wire. So factor in whatever your hourly rate is times 25 hours to get the opportunity cost of the diy job. Maybe you’re right and it just makes sense to buy the darn thing. At least I had fun though.