Give Primos a try, or even Duck Commander... they have several calls that sound great and won't bust your wallet... another great sounding call that I picked up last season was one from RNT, but don't jump to conclusions on the cost... it was their polymer j-frame Quackhead model... for $25 you get good a budget-making call that sounds great...
I have blown several brands and types of duck calls, and it seems like each season I always find one that I think sounds better, and blows easier than my current "favorite"... but the best duck call on the market is the one you have the most confidence in, and feel the most comfortable using in the blind... I try to pick up a few new calls prior to each duck season, just to see what makes them think they're better than other call companies... after all my "research" (at least that's what I tell my wife) I have found that, yeah, each call brand has its subtle differences... but the best way to make a call sound great, is to practice, practice, practice... :thumbsup: