What I see here are highly brandable domains. The only one I see that has some intrinsic value is Booster foods.
FunkyYou.com - I don't know what niche brand this would be for, as I think it could be many, but highly brandable and short. Low to mid XXX @ wholesale, potential XXXX @ retail.
BoosterFood.com - Very good for the health food niche, I think. Low to mid XXXX @ wholesale, potential minimum high XXXX+ @ retail.
RetailViking.com - Good brand for some sort of tool or coupon/deal site. But I think you will have to develop for a worthwhile sale price. Hard Niche to profit from anymore. It could also be the name for some sort of dropship/retail arbitrage tool. Good for branding. But I can't even begin to give a sales price guess.
PureAcre.com - sounds like a great brand, but I don't know what for. As-is, XX @ wholesale, maybe mid XXX @ retail, but it may take a while.
My appraisals are my opinion and nothing more.