... and I used to like you.
You're the same age as me, and I grew up on my NES. Got mine in 1991, and played the shit out of it basically until a couple of years after the N64 came out. Then it got set aside for "ZOMGLOOKATTHOSEGRAPHICS" until I finally dug it out of the closet and started playing it again.
It has a lot of great games. And honestly, the ratio of good games to bad is probably about the same as what you would find on most systems. I can probably think of at least fifty games that everyone and their dog should play.
I play my NES all the time.Used to collect the games and played through almost all of them (I beat about 80% of my 249 games) before I had to sell them to buy baby stuffs. Which I still regret doing. Massively.
Not every game for the NES is a gem, most definitely. But there are a lot of fantastic games, and it's one of the few systems that I constantly find myself going back to. I haven't touched my N64 in years, other than a couple of playthroughs of Ocarina of Time, but I'll still boot up my NES about three or four times a week and play through Batman, or a Mario game, or Zelda, or Metroid.
When it comes down to personal preference, sure, I can see the NES not being your choice system. But there are good games for it. Most of them of a much greater replay value than the stuff that gets pumped into the market nowadays.