FYI - I am comparing the pricing of the HSK-165XL vs the MLK-165 as "incremental". I agree that the pricing of the HSK-165 is pretty decent, not quite half the MLK, but still quite a bit less. But I wasn't a fan of the HSK-165 overall, the tweeter is awful IMO. The woofer is decent, audible midrange distortion, but that extra output and "warmth" is agreeable by most people. The HSK-165 aren't very accurate speakers IMO, whereas the MLK are unforgivingly accurate. I prefer the latter.
Side by side - I prefer the HAT Clarus over the Hertz HSK for the same price.