Goose Call Help

I'm looking at getting a new goose call. I want to get either a GK or Tim Grounds call. I'm in between a GK Comp Slayer for $100, TG Super Mag for $105, TG Super Mag Pro for $120, and a TG Real Thang for $105. I know Tim Ground calls are known to be the best but I listened to them on the internet and honestly I like the GK the best but it's the cheapest one and almost everybody seems to like TG calls so I feel like I'm missing something in them. Any suggestions or experience with these calls would be great, thanks!