Dollar Store HPT

I've heard that the dollar store pregnancy tests are just as good/same quality as the drug store brand name ones. Is this true? Can't keep shelling out $10- $15 a test :S Even the bulk packs at Costco are pricey. I haven't looked at them other than kind of in disbelief that it's actually a dollar-store item. Haha. Fingers crossed they are legit!! If not, do you have a favourite brand/store for cheaper tests?