Shutgun1 speaks wisdom. I back track or follow saved existing tracks far more than I use any function on my GPS.
I was where you are a couple years ago. Figured I just needed a cheapy to get me back to camp or a downed animal. It's not much more for an upgrade but the benefits are more than worth it. I picked up the Garmin Oregon 450 for $199, put in a $99 boundary chip, I couldn't be happier. Just think, $300 and you use it for +10 years, that's only $30 bucks a year or less, or maybe $5 per hunt. Pretty cheap when you think about it that way.