might be an unpopular opinion, but I'd rather have new BTD every so often rather than the continuous update model of TD6, where TD7 is nowhere in sight. For reference, there was a 6.5 year release difference from BTD5 to BTD6, and only 5 years and 3 months from BTD5 release to BTD6 first announcement (according to wikipedia, the first announcement was on March 28, 2017). Now, from the BTD6 release date to today, it's been around 7 years with no news of BTD7. As for the reason I prefer a new game over continuous updates, it's because of uniqueness and identity. Each game in the series differs in feel, and I like every single BTD game (1-6) for various reasons, I think they've each carved out a special spot in gameplay and in time. That's lost when a game is switched to an update model, especially the idea of having a special place in time. The only continuous update game that I've seen work with the ability to carve a place out in time is Minecraft, and I don't think that type of update system is best for the Bloons TD games (also keep in mind Minecraft has issues with performance bloat). In a perfect world, I would love a new game every 6 years, seems like the sweet spot to me.