Understanding Foursquare pricing
On my journey to broaden my rum horizon I've been looking at buying a bottle of Foursquare, inspired by the many favourable mentions in this sub. I am however a little bit confused by the pricing which I'm seeing locally here in London, and I was wondering if someone could shed some light at what is driving these price differences.
For example, prices start at just under £100 for Penultimus, Mandamus, Convocation, etc. then go up to just under £200 for Equipoise, Isonomy, or Shibboleth, via £350 for Raconteur or Sassafras and end at £700 for Destino. What causes the prices to go from single to double, and to 7x at the extreme end? Is it just scarcity, or is there a marked difference in quality? And how does one choose between the 29 different varieties on offer in this particular shop?