i see the angle your coming from, but i see it this way
1] the fact that a car can be built in the UK and shipped half way across the world and sold at 20% discount has not stopped you buying a mini....
2] compared to Ford, GM, Japanese and even VAG motors mini tuning on the whole does not appear that cheap
3]cheaper parts may lead to a bigger spend overall if mini tuning becomes a bit more accessible
4] gutted as i have one already, but happy for those who haven't