You don't say where you are, but the best way is probably a google search.
I doubt you'll find much discount because the new models are evolutionary rather than revolutionary and the lower 2xx series seem to have features that were once on the higher priced models rather than stuff never seen before - and it's probably been long enough that any that were going cheap have already gone.
That said, imho, the cheapest clp model is the P series - you can get a P250 for the same price as a clp130 here.