Importance of extra 1/2 bath?

So my wife and I are looking at toy haulers for us and our two daughters (age 5 and 2 1/2). We like several of them but some don't have the 1/2 bath in the back. Can anyone tell me that has first hand experience if this has been a big difference or not? We don't want to limit ourselves just looking at ones that have it but also want to be smart when making our purchase. Thanks!