Is the Pentaquark the Only Justification for Research on KN Physics ?

The talk is intended to motivate the use of DA$\mathrm{\Phi }$NE–2 running at the $\varphi$ peak as an intense, clean source of low–momentum charged and neutral kaons. It covers a few open problems still unsolved after more than twenty–five years and the physics (some of it still novel) that could be learned only in this way. And, of course, the answer to the above question is {\sl NO}.