Question should i buy a mining card?

Mar 6, 2019
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so i found a deal on an rx 470 4gb from msi,they're at the price of a gtx 1050 in my country (which is still kinda expensive but it's still a huge deal) they useally go for like 220$ here,apparently he mined on it,no OC for 6 months,no bios flash (?) he said he tested them and they're run at a 67C which is kinda ok. question is from these info,should i get it? also i plan on testing it before buying it using furmark for half an hour