RF wise the HT1000 & MTS2000 are the same. However the MTS is more versatile when it comes to assigning functions to buttons & switches. On the 1000 the 3 position switch is like a happy meal. If position A is one function, then B & C must be specific other functions. No choice. On the MTS, A,B, & C can be anything you want. The 1000 still used RSS, while the MTS uses CPS to program. Myself, I'm getting rid of my 1000's even though they work perfectly, because I'm tired of relying on other people to reprogram them, while I can reprogram my 2000's myself. Just make sure you know the flashcode before purchase, & make sure it does what you need. Of course if you need it for Ham radio use, it probably doesn't matter. GARY N4KVE