I'm still thinking about the beautiful gray one with black package that I saw in the showroom. I can still picture the $121,000 window sticker as well.
Hell of a write down on 121k. (I'm self employed and have been playing this game since 1999)
To give you an idea of my own experience, current autos:
2007 lr3 bought new, now 130k, heavily modified
2004 discovery 2 with only 86k, bought slightly used in 2006 ... will probably never sell

2008 bmw 535 touring 6 spd, bought cpo in 2010, 129k miles now, love it, modified...plan to keep until better mix of desires type wagon exists in US, unlikely
2008 audi s4 avant mt6 bought new, only 85k miles, will probably never sell
Past:
2007 full size RR SC, bought new, took almost no loss selling with only 5000 miles to get the lr3 instead for practical/functional interior reasons.
2008 VW V10 tdi Touareg - cool but too small, even the 535 E61 wagon has more space inside!
2006 land cruiser bought new. Probably should've just kept that before going into the RRSC and then LR3.... (so many reasons not needed to express here)
The new D5 is ******** if compared to the lr4 for practical functionality, but you know that already. It is however, to me, way more interesting than the Q7. I have an affinity for BMW's but only when built with the higher spec interiors and suspensions. My I6 is so smooth and has a tune so it's quite fast. The handling is tighter with aftermarket suspension, it's lovely on long road trips, the 20 way seats are ergonomic heaven

However, I probably wouldn't buy an x5 at this point.
For you, or me if I were replacing the lr3, i'd almost certainly now end up in a Land Cruiser or slightly nicer trimmed LX570. They are kind of a cool mix of things now being solid rear axle with very high towing and ladder frame yet with ventilated seats and 8spd transmission on a basic simple v8. Plus both are Japanese top grade builds. Simple functional tail gates, tow hitches, etc. Even a mechanical hand brake. Love that sort of blend.
If you were ever considering 120k, I'd urge you to drive a Mercedes G550, especially with the more recent turbo v8. Kind of dreamy in many ways and while it's old school solid axles and killer badass ball swivels, they do that better than anyone right now in terms of new vehicles. You've used your lr4 i think a lot right? The G wouldn't even need new tires, or anything. With gutters it can accept any true expedition rack and if desired, you can pop on 33-35" tires no problem, no mods needed. Heated windscreen, great ventilated seats, sounds like a muscle car, etc
Overall, I don't think the new land rovers are at all "worth" their price tags whereas I do think the Land Cruiser and LX are not only worth it, they are actually a value at sticker if kept long term.
Good luck.