This true
The new S10+ is probably worth only half its retail price now.
Yes because the smart original owner has kept the free Buds, used the free case, used the free screen protector, kept the free 200GB cloud storage, used the $100 coupons etc and not bothered about the fast charger as will get another one with the new Samsung. In some countries you got other extras like a free Samsung tablet worth another $150
With generous trade in's annual cost of ownership $1-200 for many in real terms
or for those that do not buy in on early adopters promotions and get the special 6 months discounted price still with the free case and screen protector, kept the free 200GB cloud storage, used the $100 coupons etc and fast charger
With same generous trade in's annual cost of ownership $150-250 for many in real terms
Now if you throw in additional fee's of extended warranties etc that are not required, cheaper storage options via SD cards, actual outlay is also considerably less than others, in addition to real cost of ownership there is no hassle of selling on open market
This is all OEM deals, the more canny have other 3rd party or carrier promotions
Now do the same numbers on other premium equivalents on a like for like basis that require additional outlay on accessories, memory etc and cost of ownership is not just simple depreciation of the handset