The cost of my utilities? Listen, I don't know know much electricity costs where you are, but the cost or running an extra computer is pennies a day. The cost of internet is set for me. We might talk about the increased cost of heating and cooling, but I was never one of those people who turned their system off when gone because that doesn't make literally any sense with my utility's time based pricing. It's literally cheaper to let it run as it is than than do that.

As for space and confidential items. I'm not sure ahat to say. I don't have thieves coming in and out of my house and I have a password good enough to defend the casual nosy child or relative. I have an office now because I have a house, but I have worked remotely in smaller spaces and it was never any problem. At least not compared to commuting 1 hour being, although I have commuted up to 2 hours on bad traffic days which were not particularly rare occurrences. And this is just have it is in all the cities I have lived. Perhaps not all cities, but the two metropolitan areas I have lived within and in the suburbs of. Living within the city didn't even guarantee me a reasonable commute.

If the trade off is a company getting a corner or a room I wasn't using anyway plus a few dollars of electricity subsidy and I get several hundred dollars in my time measure by my pay rate not commuting plus a couple dollar in not spending it on gas, I am happy to trade that. I'm also capable of putting my computer away and safely like literally anything else I own.

I also don't worry about the isolation that people mention (although not you here) because I have a vibrant social life. As someone who was never the typical demographic of the field, I have neve depending on socializing with my coworkers in office for social fulfillment. I still somehow maintain the correct level of social comraderie via digital means. Remote work doesn't mean not interacting with your coworkers at all.