Obviously, one of a hack's biggest advantages is the enormous and easy-to-pack cargo capacity, especially when traveling solo. Pretty much any long term travel/camping/filming/photo gear you want you can just plunk into the chair and be on your merry way, hardly any fuss.
Just as obviously, that cargo capacity bolted onto the side of a motorbike means the motorbike can no longer lanesplit.
One of the greatest conveniences of traveling by moto outside the USA is the rest of the world's acceptance that motorcycles slice n dice through automobile traffic. And it's not only convenient but fun, too, clearly.
So for those sidecaristi who travel by hack internationally: do you find your machine's inability to slice n dice through automobile traffic to be annoying enough that you ever wish you were back on two wheels despite the loss of enormous and easy-to-pack cargo capacity?
Some moto travelers look at hacks and say things like, "If you can't filter lanes anymore why even bother? Just buy an old Jeep and take the doors off."
Well, as someone who's been into old Jeeps for over two decades now I can definitely appreciate the above sentiment; however, even I as a hardcore vintage 4x4 lover do not think a doorless old Jeep provides the same open air motor traveling experience as a motorcycle. Old doorless Jeeps are great, but they are NOT a substitute for proper motorcycling.