I have one Monero pruned node, one P2Pool server (both just on a small old computer I had) and then I have three barebone dual-CPU Xeon servers running Xmrig. The hashrate is stable at 11200-11500 H/s per server so I don't have to check it.

xmrig[1558]: [2024-04-06 19:45:26.748] miner speed 10s/60s/15m 11248.0 11239.4 11244.5 H/s max 11548.8 H/s

My total investment was of about 400 USD, so nothing too crazy.

Regarding your question if it is ok, hard to say. It is important that you are fine with the price/earning ratio and that you don't loose money.

I mine Monero because I believe in it and I want to contribute to the network. The 600-700 bucks per year won't make anyone rich.