It's best to my new if you are concerned about having a warranty. If I had a $200 budget I'd keep my eyes pealed to your local craigslist ads.
Below are a few suggested new model detectors that you may see for sale in your area.
Tecknetics Euro Tek Pro, Fisher F2, Bounty Hunter Land Ranger Pro, Garrett Ace 250, or if you aren't concerned with a display you could buy Tesoro Compadre new.
The Tesoro you could buy new and it comes with a lifetime warranty. Simple 1 knob system.
Welcome to Tnet and good luck with your purchase. I recommend you watch some videos on line, particularly for the models I listed and see which one appeals to your needs. I would also try to get a detector with a Double D coil.
You should also them be on the lookout for a pinpointer, headphones, a nice digging tool (you can get a small shovel at Ace hardware for under $20), knee pads, gloves, and something to put your finds in (I use a nail apron that cost $.88 at home depot).
I have a White's Classic ID that I use as a loner/back-up that I would sell for $160 and I will ship for free. I will throw in a pair of headphones (free), for an addition $20 I will throw in a Bounty Hunter pinpointer. I have a copy of the manual that will go with the detector along with a spare battery tray.
PM me if your interested.
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