I have the AKG k240 mkII. They cost me ~$200 used, and they are my favorite open backs I've used (except the dt880's which are semi-open, but amazing). But the ones I own have such an extremely large sound stage, but the bass is tight and balanced which gives much more immersion. I love listening to jazz and indie, or anything with a ton of real instruments going on, because you get thrown right into the middle of it all. Also I love gaming with these because of the same reason. I also own the ATH-50x's that are more suited (for me) for monitoring and production. Anytime I need critical work done I reach for the ATH's, but my "play" headphones are the AKG's. I will say that the AKG's are also exremely neutral and I used to work on them, but I found a closed back better for work so my AKG's have moved to my audio lounge.