There will be a new unit on the market from White's in a couple of weeks TRX which is said to out perform all current units.. we don't know for sure time will tell. However it is to be priced about the same as all the existing quality units. I felt that $130-$150 WAS WAY TO MUCH when I first bought my MD in Nov and went with the Harbor Freight unit ($16). After the switch is replaced it should last for a few months.. it works, but with very limited range 1/2". It was worth $16 to find out that $150 is a reasonable price for a good pin pointer that works how you will want it to work after using the cheap one.. So if you just want to try one, get the HF, can't hurt to have a backup once you get the good one in a couple of weeks after you start using the HF unit.