I mined LTC back in 2015, prechildren! Two HD7950s kept the house warm during winter
The noise was not fantastic but we were both at work or out of the house much of the time.
Converted a bunch to ETH during its bull run. Did well out of that. Purchased a single BTC for $1500 or something, then sold it a few months later for $2500. Felt pretty pleased with myself, but look at it now!
Still got some ETH. Just riding it out for a few more years until I need some funds.