this is why i love medium volatility slots. they don't just take take take... you win some you lose some, and if you are lucky, you may end up in profit, but not much.
It all depends on how much risk you are willing to take. High-volatility slots are for the biggest risk-takers and for players who don't mind going many rounds with no wins until finally (and hopefully) they hit a big payout. Low-volatility slots are the exact opposite. The potential for massive wins is smaller but you can enjoy frequent but smaller wins. Slots of medium volatility are a combination of the two, and perhaps a good starting point. Others will say that low-volatility slots are the best starting point. It's very subjective.