Receipt shock

So far, I have found three sources that discuss the grades of chocolate used in candy making.  I have created a spreadsheet to keep track of chocolate brand recommendations.  Anybody can see that chart at this link (which should open in a new window).  So far, four brands come out on top:  Callebaut, Scharffen Berger, Valrhona, and Guittard.  There is actually a company that carries all of these brands.  It is Chocosphere (which should open in a new window).  Although the price per pound is very reasonable, one has to purchase 2.2 pounds of each different chocolate.  Depending on the brand, there are as many as seven different chocolates.  That means I would have to spend over $300 just to try all the type of all these brands.  That is why I am writing this blog right now; I am hoping it will break the logjam in my head so I can make a decision as to what to purchase.