Almost always better to buy bitcoin and hold instead of mining. If you want your bitcoin to grow a good idea would also be to invest in a known trusthworthy online bitcoin casino bankroll. Fue to the house edge, in the long run the casinos almost always win. So if your in for the long run if you invest in the casino bankroll youll end up woth more then you invested.
I agree that its better to hold your bitcoin rather than mining because its more profitable compared to mining. Nowadays miners equipment is not that profitable compared from previous past years because that time electricity is not expensive not like now its more expensive. There were mining sites offering investments but still turns out to scam people, and worst is ponzi schemes were very often happening to people being engaged.