Which RZR to buy?

I have never owned a side x side before, grew up on dirt bikes and motorcycles. Due to a hip replacement injury, I have found riding dirt bikes to be difficult now..

So I’m thinking a side x side will work well..

My local dealer has a deal on a new 2015 RZR 1000 (about $19k), a new 2015 High Lifter ($22,500) or should I spring for a 2016 RZR Turbo?

Where I live is a variety of riding, from sand dunes to mountain trails, not really much mud.