I agree with all the others who say condition is all important. My trailer is a 2004 model but it puts the new trailers to shame when you look at the construction and condition it is in.
I would look very closely at that 2002 model and, if it appears to be in good condition, get a mobile tech or a normal RV inspector to take a look at it and see what it really is. If it passes then I would take that unit over any newer unit. They are just not made now like they used to do.
Barney
Picture taken this past summer. 2022
2004 Sunnybrook Titan 30FKS TT
Hensley "Arrow" 1400# hitch (Sold)
Not towing now.
Former tow vehicles were 2016 Ram 2500 CTD, 2002 Ford F250, 7.3 PSD, 1997 Ram 2500 5.9 gas engine