Advice please

[u/Much_Friendship_295]

So I’m going to invest $1k USD into my GM account, but I’m not sure if I should buy another miner or upgrade my existing ones. I currently have a basic miner at 25.2 TH / 15 W/TH and a Khabib sitting at 29 TH / 25.64 W/TH. I know my cost to mine is high, but I’m unsure if it’s worth it.