Wow, you blew $4500 just setting up the room! Kind of defeats the purpose of mining. It's hard enough to make a profit without piling another $4500 on top of that!
Hosting would have been anywhere from $1,100-1,300 per month, per person when we only had 15-20 miners. With what we have now, we will hit full ROI in another 2 months or so, maybe less with the spike in price... Pretty easy decision in my mind, and I didn't have an issue putting my money to that.
Trust me, we weighed every option we could, and this was the best option, hands down!
+1. shed is a smart move. Anywhere you locate them you are looking a $500-1000 rent or more, is a remote location, and likely would require some initial modification (electrical work to run 30A 208V wiring/panel/fuses will cost $1000-2000. That doesn't include AC installation if its needed or the shelving/power bars/networking/fans/lights/smoke detectors to run everything properly.
even for a full $4500, saving even $500 a month to host in a remote location will pay off in 9 months. Its a permanent installation and you keep the shed forever