So many. There are lots of GBs that I was interested in that I just didn’t have the disposable cash for at the time.
Couple that come to mind:
GMK Taro - This was the first keycap set that I was seriously thinking about getting. However I choked with the reason of “130$ for plastic caps!?”. I just was not in the right mind set for this hobby at the time.
I almost got in on round 2 as well, but choked again because it was/is so similar to GMK Mizu which was on the way. One of these days, I may pick it up or see if someone will trade Taro for Mizu.
Polaris and Vega - At the time, these seemed like such no brainer boards to grab, and for the Polaris, I had the cash. I just was not really into another 60% at the time. Now I have a KBD8x and I love the design language of ai03’s Reference series. The after market prices are probably worth it, but I have a personal goal to never pay aftermarket prices for any board.
Oh another one: ePBT Extended 2048! I have a feeling that this will come back eventually. There was a second round but it was for Topre style caps.