It’s difficult to put this sufficiently simply; but here goes.
If your idea of leasing, say, a car is buying it outright at catalogue price then accepting that you might not get the same car back after it’s been serviced (a service routine that you pay for); I’d change your leasing company. A car is a bad example really as it’s actually used and suffers varying amounts of wear and tear. A 2D5 sat in its launch tube doesn’t really deteriorate any differently in a British boat than it does in an American one.