Another vote for buying used. Most people don't really know what they want or need when they buy their first trailer. Oh, they may think they know, but until they've spent several or weeks living in the thing, slept on the beds, sat on the toidy, and tried to cook some meals in it, they really don't know if it's going to be a good fit.
Buy used and save some of the money you WOULD have spent toward your 2nd camper. Because it is not at ALL unusual for people to realize pretty shortly that the camper they chose is just not right for them and they want to trade it in. Trust me on this. :R