In this hobby I don't think there is an endgame. By nature the keyboard enthusiast is always looking for better board. You may find what you think is the end all to end all of keyboards, but ultimately there are times when you feel a desire to just use a different board. Half the fun in this hobby is the anticipation, the longing, the excitement of that UPS delivery.
I find my preferences change from different kinds of keycaps to switches. It's nice to have several to choose from at your whim. I think for the (hobbyist, enthusiast, fanatic) you choose, half the fun is in the hunt, so there can be no endgame.
From my perspective/experience, I've come close to my "endgame." The Poker 3 LED. I was a Gateron fan for a while, but I found myself making stabbing motions in place of keystrokes so as to no avoid bottoming out. I find the Cherry Browns are more natural, and the ABS caps being soft offer a very pleasurable typing experience. I may replace the keycaps to something else that allows for backlighting. Even though this is now my current favorite board, I wonder about Ducky, Code, Tex, etc, and can't help feeling as if I'm missing out on a "better endgame."