If you are considering the Kioti, I have to say that it looks like a Kubota RTV clone. I have a beef cattle ranch and if you want my experience, it is this:
1998 Kawasaki Mule - many rust problems (even the gas tank) even though was sheltered most of the time. Gave it to my bro-in-law, who found the transmission was about to go and replaced the bed and other parts.
2005 RTV 900 (Gen 1) - with 1500 hours, still have it even though it just sits unused but great working condition.
2015 RTV 1120 (Gen 2) - with 7800 miles and 1800 hours. Big improvement over Gen 1, especially transmission.
If you want a play machine or speed, don't get the RTV. If you want power and have work to do then be sure to consider RTV. For me, the biggest issue is durability and maintenance in these machines. Belt transmissions need maintenance. My 1120 (hydrostatic) has only had oil changes and based on current wear, I expect it to do 6,000 hours, no sweat. My neighbor with a Polaris 900 w/ 1200 hours was asking about my RTV, thinking that it was time to sell before big issues appear. Comparing his to my RTV was like comparing a well used machine to a nearly-new one. If money is an issue, consider a used RTV even if you pay $10k - and make sure it has been well cared for. Both RTVs have hydraulic beds to boot.