Insulting my reading ability and math skills would work better if you weren’t making a fool of yourself.
I gave you an example of a $50 x86 PC and mentioned the more expensive options because you brought up building a pi cluster in your first response to me, at which point you’re not talking about spending $50 anymore.
The main point is that either the thin client or the slightly more expensive computer will runs circles around your pi(s) for the same price.