I loved the RE-272's vocals and would still consider them a reference point. RE-262's were good but too forward. Didn't really care for RE0. HE-500's were amazing, HE-400's pretty good. RE-400's weren't that bad but had some peakiness that didn't suit me well. I found them a tad boring too. If you have other phones that's on par or better than the Ostry's and don't wanna spend for them, skip it. You have the Rockets coming in anyway. My opinion is that the Ostry's are worth the $60 and more from what I'm hearing. To me that's a small sum for this type of sound.
i just thought maybe i could keep them as a second pair and give the re-400's to someone or sell them on here maybe. it's tempting because they're fairly cheap and being around head-fi always makes me wanna buy stuff i probably don't really need, haha.