First, it's clear at looking at the whole house, the man's expenditure was pocket change to him. The house overall is not a shack.
However, I dearly love my kitties but, even though some of the renovations are clever and most definitely fun to the cats, it's a bit creepy to me.
Each to his own, though. If he's happy, well...
"As a girl I had zero interest in the stove." - Julia Child
This is real inspiration. Look what Julia became!