
That is always the difference between new (and custom) and secondhand isn't it.
A new van would set you back $30,000 for example. I wouldn't be all that keen taking an old van worth only $1500 on the many road trips we do each year and when you add car rego (inc compulsory 3rd party insurance) of $400 or something per year, servicing at say several hundred dollars each year, parts & labour for all the things that go wrong in vehicles that age, tyres, depreciation, fuel for old gas guzzlers etc, that $1500 isn't looking so cheap anymore. Add to that the fact that the rust, smell and mould problems inherent with storing wet gear inside the vehicle all year.
The aluminium in the box of our trailer alone cost $1700 just in materials and it took 3 full days with 2 guys welding just the box together so the labour is pretty significant. Then there is the cost of fully galvanising the chassis and the new Landcruiser wheels, off-road axle and springs, new LED tail lights etc.
As usual, it comes down to new vs second-hand, custom vs non-custom etc. Different people have different needs. In our case we use the trailer for a windsurfing camp we run each January up in Geraldton for school kids as well <
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Also, after growing well and truly fed up with trying to tie down boards on the roof of our 4WD in 30 knot winds all the time, scuffing up, soaking and sanding the interior of our new 4WD with sails and booms, not to mention the hour of sailing time we'd lose packing and un-packing gear every session and the innumerable times we cursed ourselves for not bringing a bigger or smaller sail or a learner board for a friend who turned up out of the blue, we found it pretty easy to justify.
I guess for those who spend several thousand dollars each year buying new sails and the odd board (not us - I still sail a Tiga Wave and NP RX-1!), a once-off of $5k for security and convenience isn't such a bad investment either.
YMMV
-Mart