In my opinion, unless you already have a lot of Steck and are unwaveringly committed to it, I wouldn't go down that path. Although I have seen several Steck sets in local toy stores and it does appear on ebay frequently, prices are continually rising and it will, by definition, become increasingly scarce and thus expensive. I made the decision to invest in System X. Yes, it has its drawbacks, but so does Steck. I just don't see Steck reappearing but I think System X will be around for some time.