How long do you think it takes before it needs doing again?
Not the electrics etc but
How long before you repaint everything inside?
How long do you reckon carpets should last?
How long before the kitchen needs replacing?
Assuming it was all done to a v good standard in the first place - wool carpets, expensive wooden kitchen, Farrow & Ball paints etc etc.
Just canvassing opinions - then I'll tell you how long everything has been done in my house and how it is looking now.