And, further, the advent of Tasers and Glocks has shoved shotguns and assault rifles into the trunk anyway. The SWAT Team or Special Response Team or whatever a given agency calls it takes care of the heavy lifting, as Ken said.
Weapons as interior fodder just aren't the big thing anymore. With a good computer, portable radio, Taser and Glock a good cop just doesn't need a shotgun in his lap.
I'd have rather seen them tool up some antenna bases, GPS disc antennae, switch panels, radars, and LoJack receivers, but I'm REAL happy with the kit as it is. REAL HAPPY.