You are getting a lot of advice here, suggestions that cover a wide range of different call types.
There is a huge difference in the way you run a short reed call vs. a flute vs. an Eastern shoreman.
If it was me...and I was starting all over again...I would get myself a reasonably priced short reed goose call and a copy of Scott Threinen's Bad Grammar DVD.
I started with a Mick Lacy Chinook short reed goose call and it was more than adequate. I have since up-graded to more expensive calls, but the Chinook was only $25.00 or so and it sounds really good. To be honest...it doesn't really matter on the lower end calls as they are all basically the same design and have the same reed setup.
Note as well that calls sound better the more you practice...they need to be broken in, much like a new pair of shoes. Guys will buy a call and try it a few times and then say it is junk...and they never really gave it a chance. I currently have 2 calls that I carry in the field, one is cocobolo and the other is delrin...but I have another that is acrylic that is new...and needs more time to be broken in...so I run that one in the truck on the way to and from work, but until it starts to sweeten up a bit...that is where it will stay.