In most games, I find players drifting towards the same weapons over and over because mechanically they're just the best option. If you're playing Cyberpunk 2020, there's not much reason to take a light or medium pistol because even the lightest of armor will render both next to useless. A heavy or very heavy pistol is just as concealable as a medium pistol (a light pistol is even more concealable) and the difference in price isn't a barrier for most PCs. i.e. Nobody is going to bulk at the 100 eddie difference between the Budget Arms Auto 3 (11mm) and the Dai Lung Streetmaster (9mm).