Looking through the ingredients for their brain stack, I'm not really seeing $80 worth of anti-aging brain-enhancing product (or whatever they're charging?)
It's got vitamin D -- nothing special there (just walk outside or take the vitamin D that's in every other supplement.)
It has... 16 milligrams of Magnesium Citrate (is this a supplement for ants?) It has 10 micrograms of B12 from the cyanide-bound form (I usually take 1,000mcg of bioactive), there's selenium in it -- that's useful and probably a good dosage? There's folic acid (personally, I actively avoid this one), then you're looking at a pinch of Huperazine-A (not a big fan), a pinch of racemic ALA (I usually go with the sodium-bound bio-identical form), and... the magic 35 milligram dose of "EHT." It says this is a patented extract of decaffeinated coffee, but I didn't see the patent online.
On top of this, you're supplementing silica, magnesium stearate, stearic acid, croscarmellose sodium, talc, vanillin, macrogol, titanium dioxide, polyvinyl alcohol, microcrystalline cellulose, and dicalcium phosphate. Many of these I actively avoid.
This one looks more interesting to me, as I'm already taking most of these vitamins / minerals in what I consider to better forms. (Lately, I'm liking the MagTech supplement from NaturalStacks, although others have had issues with Mg Threonate.)