If Gibson's guitar sales weren't healthy, they would be heading for liquidation rather than reorganization. The problem is that Henry bought declining consumer electronics companies for much more than they were worth and saddled the corporation with way too much debt.
Upper end guitars have always been a small part of Gibson sales. Just look at the shipping totals from the late 1950s, about 5x as many Juniors and Specials as Standards and customs. But I have no doubt that the expensive ones are still being sold to end users. Les Paul Forum, MLP, Gear Page are full of upper end Gibson owners.