Wheels are good..especially if you work mostly on your own and are 'experienced'
Shooting overseas is a pain..I love the travel and the photography but hate taking lights,stands and tripods etc on aircraft. Lets call it 'hold roulette', will the kit get damaged? To mitigate the risk I have hard cases (with wheels!) they are good for protection but bad for weight, will the kit get lost or stolen..spin the wheel!!!
The camera's, lenses, macbook etc I carry on-too valuable to lose or replace quickly on location. I have toyed with 'renting' locally the lighting but it's costly, the locations are always very far away from the rental store and it can mean leaving it to someone local to sort the receiving/return logistics (I'm a control freak) and just for a couple of heads, stands and softbox light shapers.
So we continue to play 'airline hold roulette'..maybe I need to hire some 'younger' legs to carry stuff from now on.
There are many case manufacturers but I use the ones from Trifibre as they are great value.