Louis Prima + Benny Goodman: why don't they make music like this anymore?

I discovered Louis Prima only recently and have downloaded (ahm.. bought) everything i can find. He still isn't regarded as a serious jazz singer / composer- but more of a lounge act along with his "straight-man" wife Keeley Smith- whose breasts appear to defy the laws of physics in this video. Cute nose-wiping shtick.

Louis' tune "Sing Sing Sing" was nicked 1 year later by Benny Goodman to become his signature tune. Benny i discovered decades ago - my grandfather had a thick double LP of his concert at Carnegie hall- this was the VERY first jazz i had ever heard...