I wouldn't mind if they started coming out with them
If they were like "Oh we're going to do Steelbooks of Uncharted Drakes Fortune, Bioshock 1&2, Red Dead Redemption, Super Mario Galaxy, Mass Effect 1&2, Portal 2, Dead Space, Nioh etc" then I'd pick them up in a heartbeat.
Just seems silly when you have a game like Mass Effect 3 for example which had a Steelbook for the third entry but the first and second game are missing one. Even something like Uncharted where the second, third entry had steelbooks but the second had that awful border on the top and the third was only in the NA region which looked very bland. It's either they don't get one in past games or they have one in some way but there's inconsistencies