I’m not sure that I recall old “what trailer should I buy” threads here, but there’s lots of them at Bf.c. I bought my trailer used and it’s really small. If I had it to do over again I’d a bought a new one and it’d be larger. The year 1 trailer maintenance bill was a grand to replace tires, hubs and brakes. The year 3 trailer maint bill was another grand to replace the tires again, and the bent axles that were causing the excessive tire wear.
Trailers don’t seem to depreciate much. A used one in good condition costs darn close to what a new one does. One is “supposed to be” in good condition and one has a warranty.