If you are in an area that has a D-Star repeater, then go for it. If not, then IMHO it would be a waste of money. A D-Star repeater is ungodly expensive compared to a standard analog repeater. Last I checked it is about $3K for the required controller and one RF deck - and the D-Star repeater will only do D-Star, not analog.
I am not a D-Star basher by any stretch, but you need to have a well-heeled club to have a D-Star repeater - $3K for the controller/RF deck just itself, plus a set of cans, feed line, antenna, tower rent, and a connection to the internet. I would love to operate D-Star, but the closest repeater to me is in St. Louis. There is a small club locally that currently supports two analog repeaters (of which I am a member), and even after all the dues are paid at the end of the year, we don't even have the amount needed to just get the controller/rf deck in the treasury! There has been some informal chat in the club about having some type of DV repeater, and we did discuss D-Star - and we rejected it due to the initial cost as well as its inability to operate in analog mode at all. We knew that there was no way to get the membership to spring for $3K and then everyone have to get a $400 - $600 radio on top of that to even use it. Getting them to agree to spend $1.5K for a good, used dual mode Quantar or even a new dual mode TRBO machine in which they could still use their analog radios until they could get a DV rig would be a much, much easier sell.