For someone who has minimal gear, who is coming from minidisc who wants something to go with his csc as an all-in-one, it's the R-1 all the way. I don't think one could possibly angle the MT as being a "better" choice given the simplicity and budget involved here.
If you go Microtrack,you end up needing the usb battery pack, an adapter for the dual-trs input, and you would also have to deal with the issues that the unit has had quirk-wise, as has been discussed in numerous threads here already. Sure, most have workarounds, but we're talking user and budget friendly.
Just an R-1, an $80 Sandisk 2GB CF card, and a set of 2 AA batteries and you're good to go. No taper tricks needed.
For hobbyists, non-Lunatec or digi-compatible pre users (a la Sonosax, MP-2, or similar), or just low-budget types who don't have $2000 mics and similar equipment, the R-1 is the way to go. Manual functionality, intuitive design, great sound. Huge step up in sound from minidisc, and a huge step up in convenience from minidisc or dat.
The R-09 doesn't even seem to have it beat.