I thought some of the adventure games were pretty great at the time. Adventure for one. That was the game that made me want the system. Raiders of the Lost Ark was pretty good as well but a little bersome because it used both joysticks for one player. One was used for action and the other for selecting items. But once you beat any of those games, you could do it again in maybe 10-15 minutes at most. Although once the rumor of the hidden dot surfaced, that added another layer of exploration.
I remember Pitfall being good mainly for the graphics at the time but beating the game was basically just learning the map.
Yeah...I bought one of those 2600 joysticks that came preloaded with about 20 games. Thinking it'd be fun to check out. But I'd play a game for a few minutes and then try another. Definitely doesn't hold up.
The Atari 5200 should have been a game changer but they ed up the controller. Colecovision ended up being the best system (post 2600) until NES came out.