I bought my Bluelab pH meter in January, once my cheap 'yellow' meter finally wouldn't calibrate. It cost 70$ shipped with tax and all that. I did spring for the Bluelab calibration fluids and some storage solution since my old one used different calibration points. All in all, 100$ with everything you need to maintain.
After using the cheap one, I can say that the experience of the Bluelab is way better. The cheap one would bounce around and finally settle in but sometimes was just erratic. The bluelab doesn't do that, it just settles to the right number within a few seconds and stays there. Calibration is easy too.