I kinda agree with the above posters. I think everyone has something valid as to the downfall of what was a great magazine. I remember seeing my first ever copy of Nintendo Power (issue 1) and from that point on I was hooked. I started to lose faith when they stopped giving the ultra cool posters (posters were big at the time) that had one side as a strategy board like the layout to a difficult level of a game and the other side was a Street Fighter II poster (for example). I think it further lost me when it started adding in a bunch of adds as well.
The thing that really ended my subscription after years of faithful subscriptions was when they started giving overly high scores to EVERY Nintendo 1st party title. I don't remember the name of the game off hand but I remember Nintendo Power gave it a 9.2 and everywhere else gave it a 2.0. I know Nintendo Power will favor Nintendo games, but they shouldn't go that far. At that point they lost all credibility in my eyes and I just haven't been able to look at the magazine the same since.
Remember back when it use to have a "High Scores" section where people could send in photos of their high scores and get their name in the magazine. They need to bring that back or come up with a magazine that has that as it's sole purpose. Nintendo Top Tier or something. I would subscribe to that.