If Mesa came out with a new Walkabout combo, I think I would have to make an instant purchase on that. But I highly doubt that will ever be a thing. Right now, I think the Genzler 350/12 vertical is the best overall combo and I own one. My band has subs and the overall volume is down this year as we're doing more outdoor, acoustic-leaning types of gigs. So, that combo is covering my needs surprisingly well. One handed haul, and it was made into a combo with a bit of bent metal and some screws. Maybe this is the future of combos? Eich, I believe has something similar. It would keep costs down for the company and (mostly) satisfy those wanting a combo. Honestly, there isn't much advantage other than knowing that the head and cab are in the same place and I won't pull the head off the cab. I guess some double-sided industrial tape could do the same thing if you really want a combo.