4 seater vs second RZR

Got my first RZR a month ago (2009 RZR S) to see how the family would like it.

Everyone likes it (wife, daughter and son) so after a few outings I’m already trying to decide if we should change to a 4 seater so everyone can ride together or if it would be better to save up and get a second used machine. My concern is getting a 4 seater and being on the trail on our own and getting in a bad spot where we need help due to damage, getting stuck, injury, etc. Thinking if we have a second machine we should at least have one available to rely on in case of emergency.

Also wondering how the 4 seaters work on trails and hills vs 2 seaters.

Or maybe we just need friends with RZRs so we always have someone to ride with us in our future 4 seater.

Thanks in advance for input – there is a ton on knowledge on these boards, I just didn’t find this question answered when I tried to search.