steel front and back door gates and window bars

Do people actually buy these? My contractor says he has a metalworker friend that would take them off our hands for a few hundred dollars, but I imagine they are worth more if there actually is demand. Is anyone interested in them? The four window grates I think are standard sized for high windows on most brownstones (flat, no window box or AC room) and the front door grate fits in the arched doorway which is also pretty standardly sized, same with back door (that one fits the door jam).

I can post more specifics like pictures and dimensions if there’s enough interest. Just didn’t know if people bought these nowadays. They’re in good condition, a little exterior rust (nothing structural) on some that needs to be wire brushed and all could probably uses a good coat of black weatherproof paint. I’ll take best offer for all, preferably offers on sets.