I, too, have a love/hate relationship with loud pipes. I liked the 4into1 pipe on my old 1100. I could pull the baffle (just 3 screws) when I really wanted to hear that inline 4 roar. I miss it sometimes. I love the quiet stock pipes on my FJR. Little noise fatigue during long hauls. The exhaust note on many after-market pipes is a tad too loud for most of the miles I do; around town, joy rides, 2-up with wife or son, extended highway travel to curves somewhere. IF the quiet factory pipes could be converted to open header with the flip of a switch...weeellllll, you could hear me coming once in a while...rolling through long sweepers at 7500 rpm and grinning wide. ;-D
In conclusion, I love hearing the turbine-like whine of my quiet machine, and would love loud pipes on my bike when I wanna be loud. I often don't like them on others' bikes because they can be obnoxious or the way they ride with them can be annoying...and because I may be a tad jealous of the glorious roar.
‘18 K1600GT Opt #719 Blue Planet Metallic w/saddle brown seat
'14 FJR-ES Candy Red (sold)
'83 CB1100F Blue Red and White (not currently running)
'83 CB1100F Red Black and White (in the shed)