Copper 10 gigabit @ 15 metres

http://www.lightreading.com/document.asp?doc_id=42956&site=lightreading http://grouper.ieee.org/groups/802/3/10GBCX4/ Regarding the first URL, I am curious how many networks will be interested in using a 15 metre 10GbE solution. Even for intra-MMR xconns, it seems like the cable length limit will very quickly become an obstacle. I guess it depends what price point copper 10Gb solutions enter the market at, compared to their optical counterparts.