$500/hour where I used to live.
I'm going to back up loneviking here. I hate shooting indoors. loud, painful, teaches you to flinch, it's usually poorly lit, etc. ad nauseum. My favorite caliber are .357 mag, .45 acp, and .44. None of these are fun indoors. Even with serious ear protection, .357 and .44mag are marginal outdoors!
Unless you live in downtown NYC, Boston, etc., and the outdoors are hours away, you have options. USFS, BLM, and most state lands allow you to shoot pretty much without restriction (very minimal, e.g., not across or along a road, or near a habitable building). Find some land and use it!
Or, find a friend with land, and get his/her permission. Pay them with free ammo. Unless you are shooting only .22, buy a reloading kit and roll your own cheaply. Space isn't an issue. I used to live in an 800sf apartment in manhattan, and my Dillon press took up less space than my bedroom nightstand! (well, about the same, I guess).
When I lived in NYC and range membership was required for licensing to own a gun, I paid about $500/year just to be able to legally own my guns. That worked out to $500/hour since I showed up only once a year to keep my membership up, and did the rest of my shooting outdoors in "free" states.
$500/hour was pretty steep, in my book. But that's Democrats for ya' (even if they call themselves "Giuliani" or "Bloomberg.")