I research questions like this using SearchTempest... a Craig's List multicity search capability. Try it, you'll like it.
rtv 900 on SearchTempest
That link uses my zip code, etc....you can change the zip and search radius for your self when you get there.
There seem to be a few on CL at $6900 to $7900 with various features and hours. Of course this is "asking" price and I have not seen them so don't know true condition. I'd say that the one you are aware of is priced at the top of the range...probably what I'd ask for such low hours, new condition and features...I understand that people like the hydraulic dump bed feature when they have it.
I'm kinda interested in an RTV myself...have been reading about them of late.
Seems some don't like the HST feature (I do) because it STOPS when you take the foot off the pedal.
I drove one locally, pedal pressure to keep it going seemed to be high enough to me to be tiring if you drove it for a long time.
Some complain, best I can understand, that there are some conditions when putting it under strain, such as pulling or steep hill, the engine revs up too slowly and thus bogs down under the strain. I don't know if this is real or not. There seems, however, to be a manual throttle feature now, like on a tractor I assume, that can be used to set RPM's. I haven't seen any reports relaying if this fixes the bogging down problem or not.
Some complain about the lack of a speedometer as standard.
To me, the above complaints seem minimal or a matter of perception and none would be a deal breaker for me. I mention them to see what your (or others) perception of these might be.... but, not trying to hijack the thread.
WARNING....there are scamers on CL that list an RTV with gobs of features and beautiful photos for way low $$ and use a gmail/yahoo contact point...no phone number....I just flag those as prohibited