My buddy got me into it three years ago, and I believed in everything he said about it as far as value props, and I bought a healthy amount, but I think something finally clicked after watching the dollar fall in value right in front of my eyes, and the behavior of government in general and the very rich when it comes to finance.
George Carlin said, "It's a big club, and you ain't in it." And that's true, except with Bitcoin, this time the poor people got in first, way way before Wall Street. Up until very recently, I planned to cash out a little at the height of this cycle, except this cycle is only the beginning, and maybe it's not a cycle anymore when the whole world wants in, including big finance, nation states, and a big chunk of all the people in the world. There's practically no limit to the value of Bitcoin, so it would be really nice to hold forever, or at least until my Bitcoin stack gives me real buying and borrowing power in and of itself, without exchanging to fiat at some perceived high price.
I DO buy alt-coins, but more as a generally cynical attempt to cash in on other peoples' fomo and gambling. They are going to pump these coins, so I like to put a little money in at a low point and just wait for them to rise to 4x, 5x, etc in the inevitable feeding frenzy and then cash out and take my money. Why not? Other than that, I don't get in too deep with that stuff. It's just a route to easy money and a way to stave off the temptation to dig into my real stack.