The best selection of cherry shrimp I've seen in Austin is at Aquatek and Aquadome. I believe that Aquatek is $4 a RCS and then all other "fancy shrimp" (rilis, blue dreams, CRS) are $12. I believe Aquadome was slightly more expensive... I will also point out that I have recently seen some really high quality RCS at Petco of all places... Mixed with some orange neos, some not so great rilis, and then some nice little (about 1/2 inch) Amanos... ALL the shrimp at Petco are $4 a piece... You just need to catch them on their new shipment days because they don't stock a lot of them... But honestly the RCS there were probably th best I've seen in Austin which was surprising.