Not at all. I care not about the mileage I put on the car. I can easily afford the ppm charge as highlighted in my agreement, and it was set-up this way as it's cheaper overall to pay the mileage charge rather than the extra monthly payment. Although I didn't expect to do quite as many miles as I actually did (several cross-country trips to London didn't help there).
But that's not the reason why the Seat gets so much use. The reason for that is that the kids much prefer the Seat, and most of my driving is with the kids in the car. Plus the extra room the Seat gives me. And it drives so much better now it's got the remap on, and looks better with the wheels.
But that's why I've been looking at RS3's and S6's recently. Because the 530d is just parked up most of the week, and not even in the garage, just on the drive. So why bother having something sitting there depreciating that is barely used, because my other car is bigger and more economical (which is 2 of the 3 reasons for buying this particular car, it cannot compete on the comfort/performance aspect).