I had the land rover itch from the age of 15. It took me until the age of 23 before I had finished uni and could afford to buy one. a 2002 TD5 90. The best decision I have ever made. As has been said already, the depreciation is negligible. Mileage isnt as much of an issue as people say either, as long as there is evidence of regular servicing.
They're also not "awful" to sit in or drive etc. You get used to it. Im 6 foot and have no real issues with leg room.
I've also learnt loads when it comes to repairs and maintenance. Most of the jobs are do-able, with a bit of research (Haynes Book of Lies and the forums on lro.com and lr4x4.com where they have comprehensive tech archives with step by step photographs). Failing that, it wouldnt surprise me if you didnt find someone local on the forum who would come and give you a hand! If youre ever in the NE with a problem, let me know!
Ignore the impracticalities. Theyre unbelievable cars.