Digital BW, The Print

All:

I am considering upgrading my B&W system from an Epson 1280 using 
Piezography and MIS Full Spectrum inks.

Leaning towards Septone and an Epson 2200.  I found that I can put 
it all together for ~a grand.  The Septone blows my current system 
away--shadow separation is terrific, and there are NO DOTS--even 
under a loupe (as far as I can see).

My question is:  What might be the benefits of switching my 1280 
over to MIS UT2 instead of Septone?  Are any of you using Septone?  
It makes beautiful prints, and I have seen a beautiful limited 
edition book printed with it ("Darktown" by Steve Mulligan).  I have 
not had the opportunity to do a side-by-side comparison of the UT2 
inks and Septone, though.

Thanks for any input you might have!

Chris