Randall's Shrimp Goby - seasonal

[reef tank 2.0]

Over the past few months of looking for a Randall's Shrimp Goby, I am finding they are very seasonal. Making it hard to obtain one.

Is this common for a lot of fish in the hobby?

 

[SoloChromis]

Absolutely. It's like the Yasha goby season, which I barely missed, yet I've seen a few appear here and there not long ago, but at higher prices it seems.