In reply to octavious :
People have different preferences and priority’s.
Up front my preference is minimalist. Having said that one thing I really liked was towing with a motorhome. It was so nice to have a shower and my own bathroom right there. Air conditioning for swelteringly hot days or a warm cozy place to get out of the cold rain. A kitchen to fix meals of my liking. And not having to lug bags and luggage up into the room and then back down to the car. Familiar beds Free of the need for black lights to discover the horrors of motel bedspreads etc.
Open trailers are lighter than most enclosed. I suspect Featherlite and my own SIR trailers would prove the exception. Plus I’ve seen some extremely light enclosed trailers used by lawn mowing people but wow do they have thin skins.
Enclosed trailers keep the car clean. You arrive without the need to spend time cleaning off the road debris. In addition race cars are eye candy and not all people on the road or at an event are honest. A night in a motel/hotel with the car safely out of sight isn’t spent looking out the window. Heck stopping for lunch or any meal only to come out to see someone looking or climbing all over it.
Plus heavy rain or other miserable weather the enclosed trailer can be where you hide it out. Cone time for winter storage, you already have a place for the race car.
Wood deck vs metal deck. Yes you can nail a board to indicate the stopping or balance point on wood But you can bolt a piece of angle almost as easily on a metal deck.
With metal you will need plenty of ratchet straps not only on metal but also wood. Wood however isn’t as prone to slippery ness. A little oil on wood will be absorbed, metal will•••••• oops!
Look very carefully at the design of trailers. I built mine extremely low as some are. It sure made loading a lot easier. Plus a steady nice low center of gravity. The down side is occasionally I would drag a corner or perhaps the whole back of the curb or whatever was steep. I dealt with it with a wear plate while some put a roller or even caster wheels.
Some will never have that issue. Instead loading will involve long ramps or dragging/ hooking the race car. Plus the higher the car is the greater the chance of tip over/loss. And the greater the effect should sway happen.
Surge brakes VS Electric brakes? I’m a fan of surge others swear by electric.
The simplicity of surge brakes allows them to be pulled by any vehicle while Electric require the proper controller, and connector. Some don’t bother doing the required maintenance and suffer with poor braking. However I’ve seen the same with electric brakes. Poor electrical connections, worn linings, weak magnets etc. just because it’s a trailer doesn’t mean you can endlessly ignore it. Chevy or Ford? Electric or surge.
No matter which you choose buy bearing buddies. A squirt or two of grease might keep the bearings together and it’s massively easier to do than removing the cap, split pin, nut, pack the bearings with grease.
I do agree that used trailers are almost never a bargain. Decades later I see my old trailers sell for 50% or even more given the effects of time and inflation. At that they need plenty of work and parts to bring them back to the condition I sold them.