The 110 was an original fighting folder / road tool for the Hell's Angels back when it first came out. Remember seeing 110s carried by many Angels while growing up in San Jose and roving around the Bay Area.
Cops, likewise, gained an appreciation for the 110 as a duty knife and it held its place on many duty belts for many years.
In SF we used to give 110s to operators when they were leaving the team, or Group, for whatever reason. These were normally engraved with their ranks, names, ODA number, or a particular mission or specialty. I still have mine from ODA 13, 3/7 (Panama). Also as graduation gifts from service schools and such. They were and are highly valued and part of SF traditional history.
I don't see the 110 in Army PXs much. Mostly the synthetic handle models. However, the Coast Guard BX carries 110s as common item and that's pretty cool.
There are leather speed sheathes available for the 110 (have one). They work great.
When properly manufactured by Buck these are workhorse folders with great history behind them. Perhaps not as fancy or high speed as many of today's tactical folders, but certainly a well cared for 110 will do a wide variety of tasks, to include self defense, and become a favored carry knife and one to hand down to the next generation.
GW