When I first purchased my boat and needed a serious tow vehicle I had a good hard look at the Touregs.
They appear to be good buying based on the price second hand, however if you research and check out the owners forums they are pretty expensive and somewhat finicky to service, even having uneven tyre wear of only a few mm across an axle was 'out of spec' and could cause issues.
I was coveting a V8 or V10 option, maintenance and servicing on these beasts is frightfully expensive!!
Then I turned my attention to the D3 /D4 and researched hard again, too many bad stories in amongst the good ones. It felt like a lucky dip buying a Landy. (I still think they are beautiful vehicles)
In the end after a long research I came to the conclusion that as boring as they are the Japanese made wagons offered the best reliability and don't really require any specialised servicing or need a specialist workshop plus being coil spring wagons they are all pretty comfy compared to the dual cab options.
Set a budget, then consider Pajero, Prado, Landcruiser and Patrol options. I still think the bang for buck winner is the Pajero. Mum and dads is nice to drive 👍