This is just my opinion, but I feel it's a lot better to come into each year and not trying to compare it to anything else, and just take everything for what it is. With prior experience you have bias, and everything else seems slightly worse because of that. Most of your love of the past years could just stem from nostalgia (this happens a LOT in the gaming community-trust me), and if the years past truly were really good, then that's ok. I just don't think you should base all of your opinions based off of memory of what it you remember it to have been like before, since people change, your view of your first years is obviously a lot better because you didn't know what to expect as much, so you came in with a fresh mind and everything would have seemed so much better before repetition of going to this event would've dulled your opinions and your whole outlook on this.
Sorry for the rant but this is a problem with a lot of things. "Genwunners " are my mortal enemies (Pokémon fans can relate)
Edit: I spent so long trying to find the right words that Legacy did it before me.... whoops