I think there are two differing directions that the original wordy yet (maybe purposely) vague question conjures... namely (a) why would someone put new parts on a great old frame like a Paramount, and (b) why would someone put new parts on a great old frame like a Paramount, spending great amounts of time (2 years) selecting just the right parts, then only ride it 25 miles. On (a).. because this guy is compelled to trick out everything he owns to an absurd level of geek (just check out his SUV that he is also selling). It's a mental defect, which a lot of us have (everyone consumes and overspends more than we need; for gods sake, I have fifteen bikes myself), but this guy pushes it to an OCD level. On (b)... see the answer for (a), plus, now that the fun part (the tricking out) is done, he's done. He's not been truthful to himself throughout the whole process. It was always the building, never the riding. "Too busy" is a cop out; everyone is "too busy" for the things not important enough to make the time for them.