Quoted from Frax:6 years-ish I've been on here, and never ONCE have I ever been solicited to sell a game that I didn't have listed.
I actually have a few times, but don't find it particularly bothersome. Most guys are polite, and understand when I say "sorry NFS".
On the flipside, I could almost see being so desperate for a particular title close by, to try an unsolicited ask. You never know otherwise, right?
The right offer could knock socks off and the pin loose either way. But it's all about the polite approach. OTOH none of my games are so desirable that I get pestered; I can see how that would be annoying after a while.
Back on OP topic, a set of metal brackets / braces is like what, 8 bucks retail? Figure $20 for commercial-quality set at retail, then lower the price for wholesale bulk? A few minutes more labor to install. At the price these finished pins go for, how is this still a problem?