Samsung's tv upgrade program

This is pretty new, and it's kind of difficult to understand, but:

Program
Fine Print

On one hand, it sounds like a good deal, where you buy a Samsung* (*Qualifying) tv @ 36 mo 0%, make 24 payments, then upgrade to a new Samsung set of equal or MORE value than your original purchase and get the last 12 months of payments credited to your credit account with Samsung (so you're left with just the new set balance @ 36mo 0%). The question seems to be what happens to the original set if this is a leasing program (you return the original set, to get the credit), or you keep the original set.

Seems like if you keep the original set, it's a good deal, if you have to return it to get the credit, it seems like a horrible deal, basically you pay 66% of the price of the tv only to return it after 2 years.

Anyone know about this? Would be a nice way to keep a nice set around while paying less if you can keep the original set. What it gets murky is they talk about returning the original set in fine print, but not to get the credit, just that you can...but it also says you cannot resell the set (how the hell would they even know what you do with it - UNLESS you need to return it to get the credit, basically).

For instance in the ideal situation if this works:

- Buy a 2017 75" Q7 today for $3500 @ 0%, 36 mo
- Pay 24 mo, or $2,333.33 on that set, and upgrade to another set that's also $3500 @ 0%, 36 mo
- They credit your account the remaining 12 mo, or $1,166.67, leaving you with just the $3500 on the new tv

Makes the $3500 original purchase just $2,333.33 which is a great price when compared to other places you can buy the set (currently $3,299 at Amazon or Best Buy). Disadvantage being it locks you into Samsung sets seemingly endless cycle if you want to keep getting the discount.

If you have to return the original set though, it's a total waste and money drain.