No_money- I believe they retail around $50 to $60 each duplex. I installed them and did perform an A/B with the heavy-duty (non-hospital grade) outlets. (I had two duplex outlets colocated with individual home runs back to the junction box on the same phase). There was a discernible difference: smoother, more delicate lower treble with improved texture in the mid to upper bass (cleaner with less muddied bloom in this area). (As a side note, I preferred the heavy-duty outlets to the hospital grade outlets during an earlier A/B). Just my .02.