First of all, y u r comparing Kia with Honda? sportage is SUV car and civic is a simple car with different body frames and I think all SUVs are on truck frames with passenger/cargo compartment.
As far as the spare parts r concerned, kia parts r not locally mfgd, they are imported and hence a good usage life and also expensive and further more, if one can have an suv 2004 - 5 within a million, so the parts and extra maintenance is the cost of enjoying the expensive item in cheap rates.
After all sportage is out of market car.
NOTE: Well this is my thinking. dont consider these words as favoring comments for Kia sportage from me