Not as long as amazon is perfectly willing to do a refund when you receive a product that wasn't as-advertised. And i haven't seen any evidence that amazon is unwilling to give a refund.

Not only will doing a chargeback destroy your amazon account, issuing a chargeback without first asking for a refund is probably against your credit card's ToS. A chargeback should be a measure of last resort, not the first solution you jump to.

Just make sure you don't have any Kindle books or AWS resources tied to the same Amazon account, in case Amazon cancels your account over the chargeback.

Ugh... there's a bit of stallman is right in the thought of avoiding seeking legal recourse because someone can take your ebooks away. (I know they "weren't mine")

Just strip the DRM from your ebooks when you buy them; then nobody can take them away from you.