ORIGINAL: Fen
I bought a Golf GTI using the same logic when I had my S2 cab. I used it for 5 months and I even had a spreadsheet showing me how I saved £90 a month by using it to get to work. Thr touble was I stopped using the S2 as it was at the top of the drive and we had to do the "Butterflies" thing to get it out and it was not doing the car any good to sit around so I started to use it every day again. I stopped at 192,500 when I sold it.
I have to play that game as well, but its worth it to get back in a proper saddle!!