Re: I've just had a bit of a shock lol !!
Ours live out, so I don't have the cost of bedding, although both stables have some shavings in, and I do keep a couple of bales in as a reserve.
We also have our own land, so no rent, thank goodness!!
Haylage we have cut off the field by a local farmer every year, we paid about £9 each for the big bales, which is a lot cheaper than buying in, but having the 2 new ones means I've had to order some more as we wouldn't have enough for 4, and they'll be £26 per big bale.
Also, it's amazing how 4 have poached the ground so much more than 2, and we won't get half so much haylage off next year 
The 2 new ones aren't fed as they're overweight, but they have a mineral lick, there's supplements for Bracken and Monty, and Bracken has extra feed in winter.
I've had to buy a new energiser and a couple more batteries as Captain is an escape artist, but so far fortunately, he's stayed in 
I do all my own rug cleaning, reproofing and mending..........and although Fate is naked atm, she did come with a couple of rugs, and she, Monty & Bracken will all fit the same size which is handy.
It does mount up when you think about it, but I try not to, lol, I'm like Sam, I put my head in the ground!!
Lets just say we'd be a lot richer without them, but I'd rather be poor and have them than the other way round.