Imo anything less than $100 is junk. I have had many and if you calibrate them put 2 or 3 in the same water you will get 3 way different readings. I've bought the Milwaukee $22.00 ph pens and were not worth the postage!
I had a hanna $350. meter which was excellent but too expensive.
I now use ec with a hanna ec/tds temp meter if I want to check ph I either use api liquid or one of several Milwaukee controllers/hand helds I have(which all read different!). I think if I had to buy a new one I would go with this.... http://www.eseasongear.com/mimwsmphme1.html.
many I'm sure are happy with their meters but very few check them against each other as I do. just something that bugs me if a meter is off!