Cream rises to the top!
I have hunted over a lot of different e-callers over the last 20years, and FoxPro callers have earned the top spot in my book, the ONLY spot in fact.
The innovation, sound quality, product quality, and customer service can't be beat by any other caller on the market. I can honestly say I have been happier with a $200 FoxPro spitfire, and now with it's protege, the Wildfire, than I was with a Johnny Stewart that ran twice the price (although JS sounds are top notch, the callers left me wanting more.
The new shockwave, while pricey, is the most amazing coyote killing tool I have ever had the pleasure to hunt with. The shockwave really is the biggest thing to hit predator calling since the AR-15! Unparalleled versatility, control over your sounds and sets like never before, volume for miles, data-logging (an industry first!), let alone foxpro's fantastic sound repertoire and customer service, the shockwave is the wave of the future for dedicated predator callers.
You will get spoiled by a FoxPro, at any price point.