I have, and depending on how you do it I could either be ahead or behind. If I would have "invested" only the $120 that I've spent on equipment so far, i'd be

I have, and depending on how you do it I could either be ahead or behind. If I would have "invested" only the $120 that I've spent on equipment so far, i'd be significantly worse off than I am with mining. (Remember, I started this process with a handful of older/unused GPUs, so the only stuff I bought was an extra PSU, some risers, and a few odds and ends here and there). If I factor in the selling of the unused GPUs that I had laying around that I'm using for mining, I'd still be at a bit less than I am now (assuming I got the "market rate" and sold them at a good time). Realistically I wouldn't have sold them, since I didn't already and had some of them for a few years. They would have just collected dust in my closet like they were. If I "pretend" that I invested as much as I'm spending in electricity each month into bitcoin and sold it off in a manner similar to how I get paid mining (in other words, "buy in" a few $ per day, selling all of that back at the end of the month), i'd be slightly better off, but that's only because bitcoin went from $2700 to like $4000 in a few freakin days!