Maths (all figures approx)
215,000 AED car - funding costs at 5% PA, 3 years =32,000 AED
Resale value - based on current used values of a 3 year old IS300C = 125,000 AED, therefore depreciation around 90,000 AED.
Insurance (on depreciating balance) at approx 6% of vehicle value = 30,000 AED
Service costs - 5k oil changes x 6; 10k minor services x 3; 20k major services x 2 (and we're assuming we'll skip the 60k service) = approx 4,000 AED. Let's add in another 1,000 AED for brake pads and other wear and tear items etc and let's assume 6 tyres (2 replacement sets at the rear and 1 at the front) = around 10,000 AED. Add in a free Lexus loan car at every service with collect and deliver, that's 11 days at, around, 300 AED/ day - 3,000 AED. Total around 170,000 AED. At just over 180,000 AED the lease makes the risk/hassle premium about 6%.
Clearly we don't all have the same view on what risk and hassle is worth, but for me, 6%, for the car that we wanted, for no hassle, was worth it.
What's more fundamental is that when you do the maths that's what the car costs to run taking into account ALL the costs.