I think there might be different one that are thicker and heavier than others. I've felt some that were really thick. I found the Gen 6000 with needlewheel for 79.99 here:
http://www.thereefstop.com/catalog/p...roducts_id/306
This guy has great prices and good service on everything. I'd say his name but it might get him in trouble as he's moderator here but I'll sure recommend his site. If he doesn't carry something you want, email him and he'll add to it and beat any price out there too!