If you've been too distracted by the 25th Anniversary RG/S-series' bright, neon colours, maybe the manufacturer intended to do just that. While many of us are too busy deciding which finish to choose from because these are limited production units so to speak, we failed to notice that the RG version is a Premium model, while the S-series isn't; it's rather obvious from the pics above (see: Headstock).
Implications: The RG is a preferred model, it gets a set of 'preferred' pickups (not too sure if there are that many of us who'd swear by the Ibanez IBZ pickups) & by virtue of its Premium nature, a semi-hard case is included in the purchase. However, the S-series version, because it hails from a regular selection, has nothing extra to offer; it's just a standard model given a distracting finish. Double standards?
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PS: This is a big 'Hi!' to brother Ryan whom I've not met for quite a while (years, actually) but he appeared in-store today (Swee Lee). Good to see you, bro! Looking forward to your performance on Friday night.