honestly all brands have good trailers and all brands have lemons. I think haste maker got one of the lemons, I have seen and spoken too lots of happy forest river owners. same thing with jayco. both brands have seen some very unhappy owners as well. the same can be said for crossroads, keystone, kz etc. what is more important is service after the sale. I would visit the owners forums for each respective brand and see how the owners feel and what challenges/issues they have faced. the owners forums can be found by a google search. A good thorough pdi is also very important to having a trouble free TT.
I would also take the family, sit them in the TT with the doors closed. have everyone pretend to do daily activities (ie mom cooking, kids playing, and dad walking to bathroom, trying to watch TV etc). Think about where you will put things (ie moms clothes in that cabinet, dishes in this cabinet, toys in that drawer, chairs in this outside compartment etc). this will help show weaknesses and strengths of each TT to you. think about how you will use it. will you be boondocking, camping in water/electric sites or primarily using fhu? this will determine your tank size needs.
I ended up making a spreadsheet with important things to me across the top (ie tank size, something about Floorplan, weight, price, etc) and make model down the side. This will help you to see which TT is more worth your money and meets your needs better. Like you I felt used was not worth the price in comparison to new. I bought new after over 1 yr of research. almost 3 yrs later we are still in our 1 st TT. We love it, it works well for us and we have had very few issues with it. We do want to upgrade to a 5er but that won't be for another couple of years. We are ok with that because we bought our TT planning on keeping it for a long time. happy hunting.