1. Deal breaker problems in existing Puntos (e.g. almost all hyundai's i10, i20, sonata have classic steering rattle and it irritates a lot)
2. Niggles those can be rectified?
3. Spares availability
4. A.S.S. attitude and support
Yes I checked that now. I missed it earlier but if you see the colour it is exclusive in nature (I have not seen any) and easy to maintain. I agree colour choice is a personal taste but exclusivity also plays an important role for few though.
Note: I am considering dark colours under difficult to maintain category here.