I have owned three over the last twenty-three years. Charmac was junk as far as I am concerned. I only had it for two years and the build quality was very poor and too lightweight of materials for a car hauler.
My 1991 Wells Cargo 24' is still going but starting to show its wear. I bought it wrecked in 1992 and repaired it. The damage was very minor but the guys insurance company totalled it anyway. I bought it and replaced one fender well, axle and a little touch-up and nobody could ever tell it was damaged. I have repainted the tongue and endcaps about three times now due to sun fade and rock chips but overall it has been a good trailer. It is a 10k pound trailer with the 5200 lb. axles with brakes on both axles. The ramp door is very well made and after 20 years of use still looks pretty good with showing little sign of wear.
Our new trailer which we special ordered in Feb 2008 and took delivery in April 2008 is a Haulmark Edge 26' Race trailer. This is hands down the nicest trailer and in my opinion the best built trailer I have owned. I feel the Haulmark is probably the best bang for your buck as far as trailers. I loaded it up with many options and the price was still very competetive with many of the lesser quality manufacturers. One thing that sold me almost immediately is the floor spanners are spaced at 16" centers vs. the Wells Cargo and a couple others I looked at were at 24" centers. This is standard on the Haulmark, not an option.
As far as options I had a 60" tongue (some manufacturers call it an RV tongue) option added as well as 6" overall height added (it was already 6" taller than my Wells Cargo standard), 2-500Watt exterior halogen lights, full aluminum interior with 110 volt flourescent lights, L shaped workbench, LED lights, ATP floor with 6 'D' ring steel reinforced mounting points, electric winch mounted under floor/cabinet in front, extra 110v outlets spaced around the interior and the 7k lb. axles w/brakes on both and 16" tires/wheels.
I absolutely love the Haulmark trailer and it tows beautifully behind our coach or the truck.
If money is no object, which I don't know many people like this, then I also looked at T & E trailers and Gold Rush Trailers. Both are EXTREMELY well built trailers and have many features that are standard. After speaking with them on the phone and receiving build information it is obvious that neither of them are the average trailer manufacture and really cater to the high end racer. They are probably some of the best out there, but they come at a price, which was more than my budget. They are more than twice what I paid for my Hualmark. Mike.
*On Edit: I also forgot to mention that on the Haulmark Edge series a one piece aluminum roof is standard as well.
Attached is a picture of my Haulmark from the rear. I don't have any pictures of the interior.