My friend had Dragon Warrior and Final Fantasy on the NES and I'd go over to his house and we'd play them. We'd take turns playing the game and the other person would look at the included maps and beastiaries to help out. They were fun, but I didn't feel like I needed to own them myself. I was perfectly happy just playing them at my friend's house. I really didn't get into RPGs myself until the 16-bit ones came along.
Arkanoid was one of the first games I got for my NES. I thought the included paddle controller was cool and it was one of the few games I could get my dad to play. My favorite is Arkanoid DS because it has awesome music.
My brother Jeff and I loved playing Rampage when he was little. Did you ever see the movie?
The first R.B.I. Baseball game was actually a Namco made baseball game in Japan called Family Stadium. It spawned into a super popular series over there, so much so they just abbreviated it to Famista. The series still goes on to this day!
I would try to get a 7800 because I think you can play 2600 games on it, too.


