Do not jump in just yet......you need more research....if you go to a show, have a rough idea of what you want before going....google away !!
2nd hand is definitely one way to go....you will not get a lemon if you do some research....and ask on here as well....stick with well known brands if looking 2nd hand, and ask questions before looking at any !
Setup time is very important if you are to get the most out of a camper ......if it's too long, you may as well use a tent !