For Blood Bowl at least, there is a perfectly good rule set for free, and you could supply whatever minis you want. I just get caught up in the collection fever at times. Game wise, I tend to prefer systems that are simpler and not reliant on minis. The eldest isn’t much into mini games though, so we mostly play boardgames these days. I did get both kids to play Heroquest, and we had some fun with that. It’s one I hope to break out again soon, and hopefully will have some minis painted for it next time.