I guess its just a matter of preference. As for me personally, I dont need to watch a LCD display to let me know that my dogs are working and what they are doing. Its simple, as long as my dogs hunt hard and find hogs, I'm happy. I decided recently to buy a tracking system and me being me, I wanted to do as much research as possible before buying. I hunt with a buddy that has the astro and DC 20's and also have hunted w/another buddy who has the radio collars. I called my buddy with the astro and DC 20's and asked what he thought of them and his reply was,'' that if I decide to buy the astro and DC 20's, would I mind buying a couple of extra attennas and backplates because his were broken." Well that right there told me all I needed to know. My other buddy highly recommended the radio colars(quick track). He said the service was great and he has had few problems w/em. Between that and me figureing that people have been using radio collars successfully for a long time, I ended up buying one. I got it in the mail on friday and ended up useing it Sunday to find a rangy gyp of mine. Good luck with the DC 30's.