Doesn't matter, the math is much different when you are buying a depreciating asset expecting to get revenue and one that holds value.  If it holds value, you don't need much interest for it to be a good deal.  If it's depreciating, you need to make up the depreciation AND make interest on top of it.  You better be getting way better than a bank account's interest rate!  I'm not saying it's a bad investment, there are plenty of good investments that are on depreciating assets.

And I was unaware that banks no longer gave deposits back.  Good to know!