Firstly, yes, the new homepage (www.mtgprice.com) looks a little weird right now. Once the next crawl of prices is complete it will hopefully fix itself somewhat. In addition, we’ve noticed some major issues with the way we handle prices of old, high-value cards that are very thinly traded and we’re working on fixing those by tomorrow.
Next – given the new Sorin, Lord of Innistrad preview, people are eager to pick up black/white dual lands. For example, check out this reddit post: http://www.reddit.com/r/magicTCG/comments/oc2sj/im_ready_for_you_my_lord/
Now, look at this graph of the number of “in stock” copies of Isolated Chapel at Starcity:
Notice the huge downswing? That implies these things are selling like hotcakes.
We haven’t noticed an upswing in prices yet, but we can see one around the corner if the buzz continues.