I'm still going to get it too. For one, I appreciate the company and how they are keeping prices reasonable, unlike most of the others. So, I don't mind rewarding that. My ER4S is old. I wouldn't mind a new one, and it appears to hit even closer to neutral.
Its not a reasonable upgrade, but very few of my audio purchases make financial sense. So, Ima get the SR. Also, no rush, hoping for a discount.