Anyone here actually mining Bitcoin?

Been down the Bitcoin rabbit hole for a while now and I'm genuinely curious about the mining side of things. I've always just stacked sats by buying, but lately I've been wondering if running miners makes sense or if it's just a hobby at this point for individuals.

Some questions for anyone who's actually doing it..

1. What's your all-in cost per Bitcoin mined? (Power + hardware depreciation)

2. Is it cheaper than just buying spot, or are you doing it for other reasons (supporting the network, betting on price appreciation, etc.)?

3. How do you think about the payback period on hardware when difficulty keeps climbing?

4. For people in high-cost electricity areas, how do you make it work?