There might be too many bundles, yes. Across them all you can see a lot of things returning at times. That's nice for newcomers though, as not everyone has come across the bundle bandwagon yet. I only got on it about a year ago, when I joined GOG as well. I bought a bunch in a short timespan, but nowadays rarely do anymore. I prefer to go for quality over quantity. Bundles give you quantity, but they have a lot of hidden gems in them. It can still be a gamble, but if you get one not too often, it can be great.