I think it's important these threads to say YOU PAID not IT COSTS. Why?
$1,000 may scare someone away when they could do it themselves for $100 for the pan and since ford mercron SP was made for the zf transmission and well documented to be exactly the same(at 1/5th the cost).
You're $1,000 flush turns into a $150 and a spare hour.. You could also bring the $100 OEM transmission filter/pan to an Indy mechanic and see how he justifies charging $900 for fluid and labor.
The LR3 needs preventative maintaince, it's a reliable/tough truck and these days can be had for under $8,000... IMO treating it as though its an exotic is silly.
Buy one that's taken care of, drain/fill every fluid just in case, buy a dryer refurb kit($60), buy a scan tool(iidtool) and drive the wheels off.
Same tips could be said of just about any 4x4.
I'm not going to get into a debate but for the OP's consideration. You asked why?
I don't know if the OP does his own work - there associated costs with buying the parts and labor - if you are doing the work yourself, fluids, yes, great, cost is nominal. The tranny work is not the flush and fill. All these costs are independents. Here's why the tranny work costs what it does - https://www.youtube.com/watch?v=mRrBGkv4EvQ
And when you replace each strut ($400) part ($300) labor - even if you do it yourself, then yes, you are paying sports car prices after you finish replacing $1600-$2000 (strut part prices only). That is maintenance of your key systems - I don't know if anyone has lost their struts wheeling - I have twice - down to the bumpstops - on places like Devils staircase. Replacing struts at that mileage is needed - hence preventative maintenance, and - yes, $2,000 is expensive in my book.