The video of the stereo is funny. It reminds of owners of GTV's who always get that in. It is one thing about mine I hate and I just put it into the glove box. My original on the 75 is installed and completely useless. I agree with you though - having the MOT's is great, but it would be nice to have some information on items outside of the service stamps and MOT stamps.
Maybe just me, but I take service stamps with a pinch of salt even if it is a dealer or a large independent. It's good, but not the be all and end all. Proof is in the pudding and the previous owners account. The best Alfa's I have bought have usually come with a number of spare and old parts. With the 75 I even got a book, receipts previous owners had collected on work they had done themselves etc. Even if it was a replacement washer motor as a quick weekend job.
Maybe us Alfa owners are just a peculiar bunch.