At 110,000 I'd do plugs and wires as well, I know I did with my Graphite.
Needswings.com has a $199 kit of 12 plugs, 12 wires and a wire removal tool - that's what I used.

Id' not waste my time "checking" them, I'd just do it at 110,000 miles. And again, no way would I not do wires as well.

If your breather covers are leaking, I take the valve/breather assemblies off to fix that, if you have that issue, do it all at once. With the valve covers off, the plugs sit there in almost plain view and say "HI!"