How’s it compare to the older Garmin Topo maps?

There’s some discussion on geocaching.com about the new maps’ accuracy and value at < http://forums.groundspeak.com/GC/index.php?showtopic=165968&hl=garmin%20%20topo%20%202008&st=0 >, but Amazon has them available for $59.10 < http://www.amazon.com/gp/product/customer-reviews/B000RAASFK/sr=8-1/qid=1187035307/ref=cm_cr_dp_all_helpful/002-0068586-1894469?ie=UTF8&n=172282&qid=1187035307&sr=8-1#customerReviews > and Garmin’s offering a $30 rebate off that < http://www8.garmin.com/cartography/mapSource/topous.jsp >.

Are they worth $30?