A couple days ago, I got a hook on a rare train set offered from MTH years ago: a Millennium Hudson (20-3040-1) with matching passenger cars and boxcar; all new, never ran. However one thing I have not done my homework on upon deciding to put my foot down for the train set, is Proto Sound 2.0 was not available until a few years later; this means I can’t control the train set with DCS, but only relegated to conventional operation. And this is hoping the PS1 board does not go kaput on me. Personally, I’m an omnivore when it comes to how I do things in the hobby; I collect and operate, but for the money that I’m gonna be in the hole for, it would be wiser in my eyes to be able to use it. For me to use it extensively, I’d have to upgrade the board to PS3. Even if this is done at an authorized MTH technician, will this upgrade destroy the value of the set? Have any of you guys decided to implement a modern upgrade to an older and rare set and regret it?