I wont argue. I've been lucky. With over 75000kms owning two of them I had to have a AC hose replaced 2 summers ago. $1600. Thats it. 981's are incredibly reliable.
But yes parts are an eye watering price. I know someone that had to replace both headlight assemblies on a MY2000 Boxster. About $2500 each.
As much as I admire them, owning a Porsche is not for the faint of heart.
When you have been spoiled by japanese reliability and quality, Its hard to go anywhere else.