Yes, those Akira HCs were nice. I had the set (bought on the aftermarket over the course of a year for an average of 30$ ea) but sold it during a downturn in finances for 300 - a slight profit for me and a decent price for the buyer. At the time, if you looked, the ebay prices were typically 50$ a volume.
Dark Horse came out with tpbs at that time and included the 6th volume, but it was only b/w.
I had half expected a hc version afterwards ( the barnes and noble hc of volume 1 was only 15$) but they never appeared.

'Reading' / 'Reading soon' stack: DC/Vertigo - ArtOps, Batgirl, Gotham Academy, Gotham by Midnight, Injustice; Marvel - Allred's Silver Surfer; Other - Abe Sapien, Descender, Fight Club 2, Goon, Mind MGMT, Southern Bastards