More than worth it! I run both telemetry and garmin collars but most are ok just running garmin collars as long as you got a good road system and don't have country you're going to lose your dogs in for more than a day. The garmin collars only last 24-36hrs and you have to recharge them. It will save you TONS of time and gas money searching for dogs having the Garmin Astro 320, or 220.