What you said is essentially meaningless though. "I don't like a blockchain-based currency because the record of transactions is permanent." Well...yeah, that's the whole point of blockchains. The strength in Monero's case is that everything is so obfuscated (and amounts + addresses are encrypted) that it's the best option out there. It doesn't have to be perfect, it just has to be better than its competitors.
e.g. Facebook isn't perfect, but it sure obliterated MySpace.
Not meaningless as the links between sender and receive can be eliminated completely depending on the protocol in place. The record of a transaction has to be on chain, but not necessarily who participated in it, or the nature of their participation.
It's true that a system doesn't have to be perfect to win, but I don't see how monero has the edge on any dimension. It's not necessarily the most secure, its not the furthest along in development, not the most user friendly, not the fastest mover, etc. The overall bullishness people have for monero is because its supposedly better in terms of privacy than its rivals. But this is dubious without the right kinds of proofs when the competition does have proofs.
e.g. Facebook isn't perfect, but it sure obliterated MySpace.