Well, here is my monthly minoxidil cost study:
30 days Rogaine should run you $18 if you look hard enough, find a deal, and buy bulk
30 days Dr Lee, $16
30 days Xandrox pm/minoxidil am, $36
30 days Generic, $8, or less
(these are all "base prices", no taxes or shipping)
As for my regimen:
minoxidil, $17/month
Nizoral, $8/month
Tricomin, $10/month
spironolactone, $8/month
Total damages = $43/month