Need some advise on a ASIC miner buy.

[cassieheart]

I was looking through eBay and ran across what I think seems like a good deal on some older Baikal ASICS, I don't have much money to burn ATM and I'm kinda on a budget,
these are Multi Algo, and will mine Blake256R14, Blake256R8, and Blake2B if I can win them at $300 would that be a good deal? I was looking at other comparable Baikal and Antminers they seem to be going for twice that price for one miner, but I don't know much about them and was hoping someone here had some experience with Baikal.

https://www.ebay.com/itm/185579622973

[FP91G]

Check this data, if I remember correctly, these are old ASICs. The profit there is very small and there may be problems with the service and the availability.
 of spare parts.Baikal BK-B profitability calculator
https://minerstat.com/hardware/baikal-b

Baikal BK-D profitability calculator
https://minerstat.com/hardware/baikal-d

[cassieheart]

Check this data, if I remember correctly, these are old ASICs. The profit there is very small and there may be problems with the service and the availability.
 of spare parts.Baikal BK-B profitability calculator
https://minerstat.com/hardware/baikal-b

Baikal BK-D profitability calculator
https://minerstat.com/hardware/baikal-d

Looks like they are not profitable atm, but that's at Lbry's current low prices I might see if I can win them, I have a feeling LBC is going to boom.
Thank you for the links, that helped a lot.

[FP91G]

Check this data, if I remember correctly, these are old ASICs. The profit there is very small and there may be problems with the service and the availability.
 of spare parts.Baikal BK-B profitability calculator
https://minerstat.com/hardware/baikal-b

Baikal BK-D profitability calculator
https://minerstat.com/hardware/baikal-d

Looks like they are not profitable atm, but that's at Lbry's current low prices I might see if I can win them, I have a feeling LBC is going to boom.
Thank you for the links, that helped a lot.

Do not buy used ASICs.
The only thing I would buy is the old Bitmain AntMiner S9-S15 ASICs, which are very inexpensive to repair and are repaired in most services. But you must have very cheap electricity, for example 1.5-2 cents.
And if unpopular asics break down, you won’t be able to quickly repair it.