i' d suggest a black ice call bout $20 bucks and well worth it, personally i use some ole cheapo wooden calls,have for years and they work great for me, just got a black ice call and like it alot have yet to give er a whirl in the field though its a poly.
guess bottom line is IMO its not the call its the caller and it depends on how much you want to spend wood is cheap but will swell in prime hunting wheather, poly is better and acrylic topline, i myself have not noticed any major difference in poly or acrylic so .....(with my wife monitoring my spending)

i got a new poly.
on another note i bring 7 calls in with me and switch em up.... the more distinctly different sounds you can make the better off you are. In my experience i have much better results using mulpiple calls than just one or two....so i' d suggest buying 4 or 5 poly calls instead of 1 acrylic, I think you' ll have much better results.
i even have 2 woodie calls and a crow call i use sometimes( alot of crows where i hunt) it seems to relax the ducks sometimes..and bring em in