We like our Airstream but there have been problems and really, too many for what Thor charges. About $5000 - $10,000 less would be more reasonable considering the build quality.
Fortunately, we're do-it-yourselfers and have remedied the problems we've encountered. But what about those that don't have or are unwilling to acquire the skills necessary to fix them? That's a topic we cover when on some of our journeys: can you imagine not knowing how to fix some of the things an RV-er will have and then having to take it in to the dealer? A lot of RV service epitomizes bottom-of-the-barrel customer relationships and quality of work is seriously lacking, generally. Believe us, the problems will be there whether you spend six figures or a low-5 number on another brand. Expect that assembly problems will be part of your complaints on any brand and again, Airstream is no better or worse.
Airstream fanboys will say, 'oh, the quality is great and we love our Airstream' and for a few, that's an accurate assessment. Some Airstreams are 'tongue-heavy'. Airstreams' specs say the tongue on our Flying Cloud weighs over 800 lbs. That's a good deal over the general guideline of 10% of the total weight of the trailer. No comment from Airstream (ever) on this and we deal with it. I do not know how other brands fare in this area, BTW.
Would we buy another Airstream? I think we'd try Lance, Grand Design or a couple of other brands next. They won't hold their value as well as the Airstream does but that's because of the 'cachet' Airstream has, certainly not the build quality but the fact that it's an iconic brand. Other than aerodynamics (which are great) it does not do anything better than the average other RV. Do a search under 'cabinets falling Airstream' or 'skin buckling Airstream' which is this brand's Achilles heel. Each brand has its own unique failings, not just Airstream. And this is not an indictment of Airstream but just one of those 'to be dealt with' things.
We like our Airstream but we also realize that it will require constant maintenance like any other RV does, not more and not less. If you're not willing to learn some basic skills in repair, rent an RV for your trips. Yes, I know you may pay a lot for your RV but price in an RV does not equate with quality like it does (generally) for a car. Paying megabucks for a trailer does not entitle you to hands-off or trouble-free ownership.