I've been on home for about a year and a half.
So one night when I was bored at work, I gathered up all of the "Funds Have Been Added to Your PSN Wallet" emails and punched them into a spreadsheet giving me an easy way to get a grand total.
Before I looked at the number, I visualized in my mind how much it could possibly be.
I tought of an absurdly high number thinking that there's no way on earth it would be more than THAT.
When I looked at the total, it was MORE THAN DOUBLE what I thought the highest could possibly be.
So yeah, several thousand was spent on PSN with maybe 300 or less being non-Home relaed purchases (DLC, games etc.)
Over two bills during the few months I played, and I was thoughtful with my purchases (sales / bundles, no gold suit, etc.). Really easy to get carried away though...when you see a cool item it's like: