You should really look into the the Blacet Time Machine.
http://blacet.com/TM2050.html
The positive:
*It's analog
*2 Seconds of delay
*Lots of CV options
*Built in LFO for modulation
*Can flange unlike the MF-104
*Less than the price of the MF-104 even after power supply and +10v module
The negitive:
-Needs a power supply
-Need to bring instrument levels up to 10v
-No effects loop unlike the MF-104
-Can be really low-fi after 800ms(same as 104)
-Not a stompbox(**I've seen some people convert theirs to one**)
-Frack-Rack 1/8" mini jacks
I have 2 MF-104s(not for sale) that I think are incredible, but I love the sound of the Time Machine also. I find them very close in sound quility when set to the same delay time as the MF-104, 800ms. With the CV controls and used with the CP-251 you can get some very cool delay modulation from FLANGE, PITCH SHIFTING, FILTERED EFFECTS and ROOM REVERBS. Not to mention some cool DELAY too.