i can say not worth, and this by far. I mean between $1 - $5 earnings a day before power and a price over $5000. FPGA mining is not worth and it was never worth in my opinion, the devices are too expensive.
Meh it's not too bad, looking at the superscalar k10, at 0.1$ kwh price, you are making almost 10 USD per day profit mining alephium. You can buy it from a certain asic custom firmware salesman for 5250$(don't wanna advertise). That's a 547 day ROI which is not too good or bad, but there's only like a handful of ASICs that can match this, and we are in a market state where it can't be fully called bear or bull market (at least imo).
Idk, I was considering this as an investment which is why I opened this thread to ask if people have had negative experiences with them(failing chips, etc)