I think your mixing two different cars.PyroLume-
10K for a S4....wow.
I have seen them recently go for as high as 38K.
What kind of issues did you have that required 10K each year to maintain? I've had mine going on 9 years and besides the C service, I change the fluids regularly and my S4 and do not see yearly bills north of 1000 bucks depending on what maintenance/upgrades I may do.