Hey Balgaa,
I recently purchased a certified pre-owned 2005 LX470 with 20K miles, no nightvision, and no rear seat entertainment for $32,000.
I was looking for a low mileage (40K miles or less) 2005 or 2006 LX470.
For a sub-50K mile 2005, prices range from low $30's to upper $30's. Most I found were between $35,000 and $39,995.
For a sub-50K mile 2006, prices range from upper $30's to mid $40's. Most I found were between $38,000 and $43,000+.
I targeted about $28K to $32K for a 2005 and about $35K or $36K for a 2006 - I was not in a hurry.
Neither nightvision nor rear seat entertainment seemed to affect the price. About 1/4 of the 2005 LX470's and about 1/2 of the 2006 LX470's that I saw had rear seat entertainment. Much, much less had the nightvision option.
Maybe a private party seller would increase their price for these options, but I didn't find many LX470's being sold by private party sellers.
Good luck with your search.