I agree. I like the idea of being able to put the SAM1HF with a variety of LF drivers. I also like the fact that the drivers in the SAM2LF are superior to the drivers in the 800 Array, 880 Array and 1000 Array. I think Jerry did a really nice job with their design. I like to think of it as a modern LE8T-H.
Incidentally, and I've said it before, the 800 Array was deemed the smoothest of the series and they go quite well with the 1500 Arrays. I'd personally have to replace that eight inch in the 800 Array with the eight inch in the SAM2LF just as a matter of principle but whatever works.