I have one of the (now hard to find?) Fusion 10 cases. It has wheels, and is 9 lbs. Very light. Not quite as much protection as the SKB case that I used to use, however. I like the lighter weight though. And since I carry my own gear (Rock'n'Roller cart) I (like some others here) have never had trouble with a soft-sided bag, in ~30+ years of gigging ...
I'm waiting for the case that includes built-in hover-board technology, so that the case just floats along at zero gravity :-0
-Jim
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Genos / Tyros5 / HK Lucas Nano 600 / FTB Maxx 40a / EV ZX1A / Rock'n'Roller cart / Hauptwerk virtual pipe organ / misc other audio & music toys