I dare say I liked it more. Not to say I didn't love the 2600, but my grandparents had the 5200 and my siblings, cousins, and I spent many an hour playing it. Miner 2049'er, River Raid, Centipede, Star Raiders, Pole Position, Frogger, Breakout, Pitfall 2, Mountain King, Q-Bert, Dig-Dug, Joust, Decathlon, Robotron 2084, Jungle Hunt, Star Wars, Realsports Baseball, Realsports Football, Congo-Bongo, Popeye, Defender, Galaxian, Kangaroo, Keystone Kapers, Missle Command, Qix, Countermeasure. They had them all. That was my childhood....along with my grandpa always having to fix the controllers lol.
My immediate family bought the 7800, but it never really took off and didn't have as many games.