Every car is going to have large and small problems in the long run. It is just a matter of what problems that vary between different makes/models. Would you rather deal with a car that contantly blows head gaskets or one that burns a little oil? That sort of thing.
Personally, I am completely satisfied with my 2002 P5 with just shy of 50k miles on it. I'm going to slowly start modding it. The TSBs are helpful and the people here know their Mazdas pretty well. Unless you beat the s*** out of the car, you aren't going to blow up your motor. Most of the people here who have motor problems had it covered under warranty (VICS/VTCS screw), or they had aftermarket parts (turbo, water in cai, etc) that contributed to the problems.
Personally, I am completely satisfied with my 2002 P5 with just shy of 50k miles on it. I'm going to slowly start modding it. The TSBs are helpful and the people here know their Mazdas pretty well. Unless you beat the s*** out of the car, you aren't going to blow up your motor. Most of the people here who have motor problems had it covered under warranty (VICS/VTCS screw), or they had aftermarket parts (turbo, water in cai, etc) that contributed to the problems.