those 60 months I'll be able to sell the GX470, irregardless of miles, for about $4-5k less than I paid for it. Or I can keep it and have 0-payment. At the end of a lease, I have to either purchase the vehicle after already paying for depreciation, or trade it in on a new lease/new vehicle. So you are kind of out a certain amount of opportunity cash in perpetuity, until you decide to finally "buy".
So by that perspective, yeah; people who lease are "shelling out a ton of cash".
It's ok. People shell out a ton of cash for a lot of things. Houses....cars...phones...TV/video subscriptions. It's all what you want to do within your means.