Commercial herd...I'm still of the opinion that, so long as the bull is not carrying any known genetic defects, and you like what he brings to the table... there's little to no downside to letting him breed his own daughters. Concentrates the good traits that you like in your herd and you get more use out of him.
Have a similar one here I'd like to find a home for...3.5 yr old...just now hitting his peak...and we haven't even kept any daughters yet...but switching to all Spring calving, we don't care to keep him around for 10 mos with nothing to do but eat and tear stuff up. Hate to pound him out, but doubt anyone around here would pay what he's really worth. Have even considered offering him for lease, to the right person...wouldn't mind having him back, come May...he can cover a lot of cows now, unlike a yearling bull.