average?? 1k monthly?
i get supp at cheap price.
but i usually haul in bulk of boxes with em and usually they'll throw in alot (ALOT) of freebies in small packages of err.. Vitargo, PHL Endurox R4, Storm, Shock Therapy etc etc. so its quite worth it buying in bulk, i usually do it twice a year.

usually daily, 5-6 scoop of Whey, BCAA, PAK, PUMP.
fish oils / calcium pilss etc are paid by company since i get it from company's clinic + blood test every 3 month, hahahahaha
important ya, especially to check on ur liver.