There's not many classic comms missing from my collection. I'm sitting at 43 out of 50, but from all that were missing this is definitely the most expensive that was still outstanding. I already have the Hawaii, Hudson, and Isabella in the upper part, I guess I just need a Lafayette Dollar and an Alabama and I'll probably have the rest of the pricey ones I'm still missing from the collection.
That is a fantastic coin! I always look at these Spanish Trail commems and would love to add one to my set but, to your point, this is one of the more expensive ones to add.