The Gothic crowns probably had limited circulation due to the fact that they were vastly outnumbered by the large issues of 1844 & 1845 crowns. The mint has always produced coins based on demand from the banks for circulating currency. There could be two reasons for the gothic crown. First it was a commemorative piece celebrating the tenth year of Victoria's reign, but also the question of decimal currency had raised its head again since the beginning of the decade. This could also have been a test the public opinion for the new design issue, which as it happened to be popular, was then adopted with the pattern florins further refining the choice of design. I refuse to believe the monetary committee worked in complete isolation to the thoughts of the public, even if everything had to be approved by the monarch. For most people the circulating currency is the face of the monarch, so there has to be some sop to public taste. Where would you prefer to live? In a monarchy that is ruled by someone who is a bit of a dog, but tolerable, or someone you could point to on the coins and say, she's beautiful. Most people will prefer the latter given the state of the country 20 years earlier with the excesses of George the Fourth still in recent memory.