I think these really depend on your local groups. Up here in Seattle pretty much everyone has Forge World, and I am sure once people start buying Super Heavies they will be pretty common. The next big book will have super heavies, no doubt. I say let the meta change, its constantly flowing, that is how GW makes money, if it wasnt then people would just use their list from 5 years ago, and never buy anything new. It's a game, if someone wants to buy a warhound, I'll play them any day. Heck that thing deserves to be showed off, and I'll paint a list to beat it.