I did too, and my teacher was smart enough to point out something very important - guitar uses a tempered tuning system. While a tuner may have some ways to compensate for that, there's no substitute for using a trained ear as opposed to reading how many cents sharp or flat you are on a tuner. I think the best compromise would actually prove to be unnerving for those who are dependent on tuners - just have something that tells you if you are basically where you need to be, or are 'clearly sharp or flat.' That way - your ears are still the primary tool used, but a 'quick visual' might help you to isolate if you have a single string that's way out (this is the most common situation for me, anyway). It's painful for me to watch someone re-tune down to 'dead-nuts on the cents' for every string, only for them to strum a chord and hear that something is sharp or flat. Or one minute into the next song, all strings are out by more than a few cents anyways. I have to say that guitarists owe it to themselves to not feel that tuners or something like a compressor are 'absolute essentials.' I know some folks feel that ANY pedal is a potential crutch, but there are instances where it doesn't hurt to determine if that really is the case.