Thats on the low end too.
These are really meant for live shows. I wear mine while the band is on stage and my ears are plugged into a wireless body pack that allows me to hear everything thats coming through the speakers on stage. Its a pretty amazing experience if you've never had true In Ear Monitors.
Tyler and Josh have several pairs of these ranging from $1,000 to $3,000 depending on the customization of what they need and how many drivers per ear they need.
In this line of work, these are necessary, but in the everyday listening to your iPod, these might be overkill. I do however love working out in them. They never fall out and I only hear the music, literally nothing else around me.