Not worth it, IMHO, when E+ access can be had for $299. Is that 25% bonus (and the e500s) really worth the difference? I guess if the OP plans to fly a ton.
LAX
When my back hurts, yeah, it's worth it. I'm in F for the next 10 days (flying
5 of those ten days), and I'd pay cash for discounted e500s if I had too.