Just to add one point - a lot depends on the type of trip you are planning. If you are going touring for 2-3 weeks every summer, then something expensive like a Hilleberg doesn't make nearly as much sense as it does for a tour of 1+ years, where you know you're going to get your money out of the tent AND you won't necessarily be able to replace it easily, so you need it to last (cycling away from developed countries and camping stores).
I was told by a NOLS leader once that the average mid-range tent is designed to last about 75 days before UV damage starts to become a real problem and you need to replace it. Our Hilleberg went for 400 days before we opted to replace it for UV damage reasons. I never could back up the stat from the NOLS leader, but if she was right, the Hilleberg gives 4-5 times the longevity than the average tent.