Re: Looking to purchase a new Guitar
Yeah, I got a used ~2008 RG1570+case (like yours) for about the same price as a new RG421 + case. While it's cosmetically knocked about, it seems really sound - and has much better nut height and intonation than a brand new RG652KFX-KB that I have. [I'll get that sorted, but if it wasn't for the RG1570, I might not have realised it was an issue.]
Really glad I bought the RG1570. It was a good purchase.
TBH, I'm not sure about the Edge vs Edge Zero debate. Non-Zero seems to have the kudos, but the Zero seems more likely to stay accurately in tune.
Also not sure if I'll stick with the Ibanez pickups. Easy to change, though.