Conf,
I don't think he's gonna be able to buy a "Diamond DA-40 TDi Star with glass cockpit" for £50k.
The balance of his £150 he would be setting aside for the ongoing costs for 10 years.
I'll speak up for the TB9 though. After I got my PPL, I did most of my flying in a TB9. Admittedly it wasn't particularly demanding flying, but I absolutely loved the TB9. The cabin had lots of room, and very much looked like a car from the 80's or 90's, and not one from the 60's or 70's! While that might not sound like a compliment to most people, it most certainly is when it comes to ga aircraft!
I currently fly an Arrow, but must confess that I'd happily change it for a TB9.
dp