I hope this thread is just a typical internet fantasy thread...
Have you even paid a power bill on over 3,000 sq ft? Especially if you're security conscious and need the outside lights on all night in certain areas... And the central air? Fuck me... That's at least another $500 a month right there.
Because renting and paying utilities on 4,000 sq ft when you're just living with the girl like the one you've been posting is just retarded.
And considering the furniture you have in your rental now, it's obvious she's not exactly Candy Spelling. Have you even imagined how much it takes to properly furnish over 4,000 sq ft? Or how lonely it feels in a place that big when you're home alone?
I think this all depends where you live. Rates for electric vary wildly all around.
My home is 3440 sq. ft and I honestly leave all the lights on in my house 24 hours a day pretty much. The outside lights are on 24-7 for sure and the inside lights seems to always be on b/c the kids turn them on and then don't turn them off until I find out like the next morning all around the house. Lets not forget 6 televisions going on 24-7 and laptops and desktops, etc.
Luckily, some of the light switches in my house are actually power cut offs for the rooms they are in, so I can just hit a light switch and cut off all the power to that room if need be when I walk by ( half of the electrical outlets are controlled by the switches, I know it sounds odd as I had a hard time getting use to it at first ).
Even with this, my electric bill is barely $180 a month.
RE: the furniture statement. We bought all new furniture when we moved into our home and left the old furniture at the old house. We by no means buy the top of the line shit, but the stuff we have is high quality though ( no plywood/pressboard/ikea shit ). 3440 sq. ft with 2 adults and 3 kids came out right about $25k for us in furniture. This is the type of furniture I could see going into one of the homes Ly2 posted above too ( no troll ).
I would ask the renter/home owner for prior electric and water bill statements so you can see what your getting into. My only pains with owning a home is taxes/insurance/upkeep expenses. If your renting though, your paying the insurance and taxes built into your rent pretty much anyways.