I currently own a pair of Sennheiser HD650's which I adore for pretty much every genre of music. However, I have to admit a lot of times when I put on some rock or blues I find it a little boring, I would like to put on a rock album and really get into the music which I find a little hard with the 650's so I decided to finally take the plunge on some Grado's. Before I purchased the 650's I had the 325is's in my sights but at the last minute decided to go with the Senns as they seemed more versatile and probably a better place to start. This time I started looking at the RS series and to make a long story short decided to save the $200 and ordered the RS2i's a few days ago. The cans aren't even in my hands yet (should arrive in a day or two) and I'm already starting to second guess myself and think maybe I should have bit the bullet and gone with the RS1i's. Seems like most prefer the 1i's but there are some that like the 2i's better, I have also heard from one or two people that rock is better on the 2i's but that's a matter of preference I'm sure, these headphones will be used for rock, blues, punk and alternative only. I also have a Burson HA-160DS and am anxious to hear what that pairing sounds like. I guess my question is do you think I made a mistake as I can afford the 1i's? It just seems like there are so many different opinions going around with these two models it gets a little confusing. I guess when my 2i's arrive I'll listen to them and go from there and then decide if I want to return them and get the 1i's or not.