1) If cost is an issue, you can always buy used. 2) The tune-up is not always necessary but recommended for the Kato switch. Out-of-gauge Atlas switches are harder to fix because there may be multiple areas that need fixing; the latest run of these are better if not free of that problem. Operationally, Kato switches that are not badly ballasted (not a concern here) don't hang. 3) Considering the fragile look, Kato built-in switch machines are robust and don't go mysteriously bad on their own.