I'm a little surprised at Ducky caps rivaling the price of the Topre PBT sets.
Are you interested in the keycaps? Or was it merely an observation?
Merely an observation, I haven't been paying much attention to Ducky in the past few years. I guess they've really stepped their game up, they look to be rivaling Filco in terms of quality these days.
The quality of these keycaps came from when they were making the Yellow Editions, they encountered problems with the original yellow PBT's breaking. This caused a month or two delay in the release of them. These keycaps are extra thick, and are very well made, compared to other Ducky PBT keycaps from the past...