My guess is that the first three selections are for specific types of arrows whereas the last group of choices is for specific versions of each type. I voted for two at the same time sooooo....
I voted for ACC (Easton) because you said price bar none. However, I think the best arrows for the money are XX78' s. They are very consitent, and about 1/2 what ACC' s cost. If money was no object I' d probably shoot ACC' s, but since it is.... XX78' s it is