Taking the monthly cost for some of the more popular options. I tried to use roughly similar bucket sizes to minimize bulk pricing advantages. This is all in US$. I don’t know what would be available or the pricing in Canada.
Exceed 6 way is $354 for 128 servings -> $2.77/day or $83/mo
PP CJ is $366 for 145 servings -> $2.52/day or $76/mo
Hylasport is $303 for 160 servings -> $1.89/day or $56/mo
Adequan is about $300 for 7 doses. If you do the 7 dose regimen twice/year that is $600/year or $50/month. The once/month dosing is slightly less.
Lubrigen is $165 for 75-150 days, or roughly $1-2/day or $30-60/mo
T.H.E. JointPlus is $154 for 160 servings -> $1.03/day or $31/mo
MSM is pretty widely available and costs vary too, but often in the $0.10 - $0.25/day range -> $3-7.50/mo
When you look at the overall cost, Adequan falls right in the middle of the pack. Granted, when Adequan was $400-500 for 7 vials is fell much closer to the pricey end, but still in line with Exceed 6 way and PP CJ.
Given that Adequan is the only one with clinical data to support its use, and clinical studies with oral supplements have been equivocal at best, for my money I will stick with Adequan.