First of all, how and when did you get your hands on the first generation of TrackMaster? They've probably become really difficult to find thanks to the awful redesigns.
These were not limited releases. They were sort of like the talking and single-speed RC engines. However, be careful with the Spencer, because it could easily malfunction and lose control like Leokimvideo's Thomas, which he once bought but never opened/used until one of his knock off/"Dark Side" videos.
These were not limited releases. They were sort of like the talking and single-speed RC engines. However, be careful with the Spencer, because it could easily malfunction and lose control like Leokimvideo's Thomas, which he once bought but never opened/used until one of his knock off/"Dark Side" videos.