If OP likes to buy new, loaded, and doesn't keep his vehicles that long, he should also consider depreciation. The Armada is 20k cheaper than the Land Cruiser now, but I'd in 3 years he wants a different vehicle, I suspect that the gap in value will be larger than that (or at minimum similar). Kelley Blue Book values the LC at ~58k and the Armada in Platinum trim at 32.5k.
So if you are buying new and will be changing it out in the short/medium term, the price difference isn't all that great. Picking up 1 kid hauling mega SUVs coming off lease seems to be the sweet spot for saving money on potential expedition vehicles on brands like Nissan.
Yeah, depreciation is definitely a consideration and is an area that Nissan/Infiniti loses the battle with Toyota. However, my goal IS to keep the vehicle for a while. In hindsight, the move I made from my 2006 LX-470 to a 2008 Toyota Highlander because of the huge increase in gas prices at the time probably wasn't a good decision as even though I didn't lose a ton of money trading in the LX-470, I probably didn't really make up for it in using less fuel in the Highlander and I definitely liked the LX-470 quite a bit more.
The only concern with keeping the G63 is the long term cost of ownership; I've decided that I won't be buying another G-class as the price increases put it way out of my comfort zone. Since my warranty is up at the end of the year which means that any future repairs will be out of my pocket, I'm considering my options.
It's sort of frustrating configuring most vehicles or looking for them on dealer lots. There's almost always at least 1 "must have" feature that forces you to get 22" rims or a bunch of other packages or features (such as rear seat entertainment) that you really don't want. If you want the nicer leather seats, it ought to be possible to build that vehicle with 20" rims, for example. I fully appreciate most of the reasoning behind that - it avoids custom orders for every vehicle sold (custom orders raise costs and increase the frequency of mistakes), the add-ons are high profit so the dealers tend to prefer to order fully loaded models, etc., but it's still frustrating. That's one nice thing with the Land Cruiser - the options are pretty much exterior color, interior color, and the rear seat entertainment package (this year has the Heritage Edition option, which deletes the 3rd row seats, and has a few other changes). It had been similar with the Mercedes where the bulk of the choices centered around color choices, but the vehicle was otherwise fully loaded - that's changed somewhat with the new model.