I don't think the amount of "stuff" you can fit onto a standard 140 or 150 inch wheelbase was any different in 1990 than it is today. The only thing that has changed is the popularity of one configuration over the other, on that standard 140 inch wheelbase.
The anomaly, at least around here, is still anything over 140 inches wheelbase, such as crew cab + long bed. This has always been the case, at least here in the east, but I suspect those in ranch country may be more used to seeing longer configurations. It'd be interesting to check actual sales numbers on each, if you really cared enough to dig.
How so?
Crew cab with 8 ft bed is a crazy-long truck, not something you'll find around here too often. Damn thing must be two full parking spaces long!
Standard pickup truck wheelbase is 140". That allows for the following configurations:
1. Original std. cab + 8 ft. bed <-- the truck everyone claims to want on forums, but never actually buy
2. Exended or Quad cab + 6.5 ft. bed
3. Crew Cab + 5.5 ft. bed <-- probably 80%-90% of pickup trucks sold today
The next chassis size up is 150" wheelbase, which is much less common, but you see them around often enough:
1. Extended or Quad cab + 8 ft. bed
2. Crew cab + 6.5 ft bed
Some makers (e.g. RAM) make an oddball extra-long chassis at 160" wheelbase, and offers the following configurations, mostly used by landscape crews, etc.:
1. "Mega Cab" + 6.5 ft. bed
Then the crazy-long rigs that take up damn near two full parking spaces, at 170" wheelbase:
1. Crew cab + 8 ft. bed
So, you're saying you drive a Crew Cab with an 8 ft bed and a 170" wheelbase? That's a total Land Yacht, not something I'd want to try to use as a daily driver. Like driving around in a moving truck!
Note, all of these numbers vary a bit from one brand to the next. When I say 150", it may be 149" in one brand and 152" in another.
Same. My prior truck was Quad cab (4 forward-opening doors, but rear doors smaller) with 6.5 ft. bed. For me, that was the ideal compromise as a guy who has to haul kids here and there, but also needs a bed for regular errands. I've moved a lot of 8 and 12 ft. lumber in that configuration, and even occasionally 16' trim and moldings, but have a trailer whenever I need to haul more than the bed can easily take.
My newest truck is the Crew cab with 5.5' bed, not because I wanted it, but because it's all I could find in stock with the other options that were more important to me (3.93 posi rear, trailer brakes package, heavy rear springs). It works, and the kids are more comfortable, but I'd go back to Quad cab if more dealers stocked them.