Am I spending too much on my boxster?

[2000986s]

So I have had a 2000 boxster S since May. The car is loads of fun and I don't regret the purchase at all, but man i am racking up the credit cards with this one. Not including any upgrades I did by choice, I am about 4.5k deep in maintenance this summer. That includes an ims solution (preventative maintenance and well worth it), a new clutch assembly, 2 new motor mounts, an AOS replacement, an MAF replacement, and oil and fluids changed. I understand a 16 year old Porsche requires a lot of maintenance, but is this typical in the first year of ownership? Car had 68k miles when bought and I've put 5k on since.