That's not what a longbox is. A longbox is when you have a perfectly suitable jewel case, done and dusted, and then you go and put all that into another box, just because.
The dumb tall cases that originated with Sega CD and lasted all the way through US Saturn and a large part of US PS weren't long boxes. They aren't boxes of any kind, they are shitty jewel cases. The Sony ones, honeslty, being way nicer than the Sega ones, which basically shatter on sight. My favorite is Panzer Dragoon Saga, which has three of its four CDs in paper envelopes banging around in the box because that giant ass case can't hold more than 1CD, despite being twice as big as a standard 4xCD audio CD case (which is what the JP version came in).
American audio CDs from major labels from the beginning up until about 1990 had long boxes (mostly hollow) to make the CD packaging 12" high. It's mostly hollow since CD cases are less than 6".
Turbo games have a "longbox" that isn't even long. Doesn't help it fit into special shelving. Doesn't increase visibility (which is why Sega and Sony did what they did). Doesn't even have extra info on it or anything TOTALLY POINTLESS.
OH you mean THOSE things. Now I remember those. Yeah those were dumb.
I associate anything that's bigger than a jewel case with "dumb idea", unless the box has extra stuff in it and is clearly a special version.
Even those CDs that came in a cardboard sleeve and had NOTHING EXTRA were stupid. A few of those amounts to one whole jewel case, and that mattered to me when I was shoving stuff on a CD rack.
... and those didn't even fit on the CD racks with the divider grooves.