I have been here awhile and have only managed to get me a bag of around 10btc bit more if I count the other alt bags, I have yet to find a decent btc making strategy.
10 coins is a fine haul to own.
I dicked around with alts too and can no longer be bothered with them. Unless you get right in on the ground floor, which I have a couple of times, it's worse than gambling. The game isn't just rigged, it'll actively chase you down and kick you until you're dead.
Signature campaigns are the most dependable source of BTC. It's a pretty modest trickle much of the time but it carries on trickling and there's zero risk. We're still a long way from having a decent record in BTC 'investment', if ever.