Well, at least, if it seems way to good to be true - whereas merely too good to be true might as well mean, that one just isn't yet aware of a recent price drop. But the latter typically isn't hard to check for, if one uses one of the established price comparision sites and checks for price differences between both different vendors and very similar products from different brands. And of course "way to good to be true" not only refers to the price levels in established capacity steps, but also to capacity steps from 3rd tier/NoName brands, which the top and 2nd tier brands haven't reached yet.
I have a Microcenter near me and they have some of the best prices going on electronics and particularly computer components. I use them as a benchmark on what is a very good deal on many items. Right now they have several 2TB SSDs for $70-$80 so anything that is substantially lower in price, or higher in capacity, should be looked at closely for being fraudulent.