I'm looking to update/upgrade my Badlands 4500. I'm fortunate enough to have a friend with a new Exo 3500 who allowed me to test it. It didn't take me long to see the improvements from my old 4500. I would be looking at a 5500 to purchase but the concept is the same. Anyway, my question is are there any other packs out there recommended over the Exo 5500? I live in Indiana so there are no good shops to test them, just going off recommendations. However, I do have a family vacation planned to CO, Denver area, this summer. If there are any good shops in that area where I could check out other option please let me know...I have until August to make a decision. Thanks,