I would not write off TNA. TNA does not have a deep complex rule set and it can actually be "beaten" (by destroying the reactor for the 9th time the game stops and credits roll) while most games let you play indefinitely. That being said if you are destroying the reactor the 9th time you are probably one of the best players in your league. For the vast majority of players reaching reactor 9 is something you maybe come close (like getting close to destroying 7) to once or twice but fall short which keeps you coming back. If you eventually beat it then sure trade it in for something new or add more to the collection and keep it around for fun.
I guess what I am trying to say is that TNA can absolutely be a ton of fun for years.
I also enjoy the heck out of Deadpool and AFM for what its worth.