Curcumin is not as "cheap" as you would think.

If one chooses turmeric it can be very cheap...but this form is not absorbed well. The studies were done with optimized (solubilized using liposomal technology) curcumin. So the results in those studies are very positive.

LongVida used to be $60+ dollars a month. But now that they have licensed out to other makers, it can be done for about 15 a month. The 400mg Curcubrain is on Amazon for $22.94/50... one needs only one a day of this type.

This is a very nice drop in price for quality. So price is not always a factor for some items. This is also true for the new water soluble CoQ-10's. The Q-gel and Qunol are very good improvements on this item which has terrible solubility in its original free form.

There are thousands of papers now on PubMed concerning curcumin... over 3000, last time I looked.