Up to a point; once it was over $12k or so, it was cheaper to mine them than to buy them. But yeah, I guess in retrospect I could have just dumped ~$450k into buying BTC when it was at $3,000 and made 3x what I ended up making, but there were other considerations for why I did it at the time. The mining was co-located with my cannabis grow/operations, and in many ways the mining was started secondary to that, even though the mining ended up being a little more profitable over the life of the facility