I haven't decided between the two, maybe the ease of access will help me make a decision. The closest pool supply store is a little far, is this generally the only type of retailer to find either/both PFS or CQ?
It will be the cheapest at a real pool store but you can also find it at some landscaping stores but they probably won't call it PFS. Your just looking for a sand that's bigger than 1mm but smaller than 3mm and is uniform in size and isn't to ugly for you to look at.
The problem with play-sand from the big box stores is that it's .5 to 1mm in size and isn't uniform so that cuts down on the CEC and plant-ability for aquariums.