How long are your open trailers lasting? I am building one and curious if I should buy a nice one and try like hell to keep it clean or just buy a decent one with the theory of replacing every so many years? I am pretty new here and building my first trailer and would like some knowledge from those who know and been doing this a while. I have some money that would allow me to buy a decent one, so I am not carrying 4000lbs on a single axle 3500lbs trailer like I see driving all over town.... or maybe since they don't last long anyway this is what I should do also. Thanks in advance for your help.