Darce There's a lot to be said for waiting out the 'new dahlia' storm. There is a good reason why KA's new releases are hard to get years after release... storage issues. I've grown several of hers multiple years in a row, and not only do they not perform well for me in the garden, but I'm lucky to have even one tuber for the next season. Just say'n.
Of course, my dahlia garden in PA is run 'Bond' style... Live and Let Die.
I love what CollaretteQueen said about sharing out special stock to keep it from dying out... Some of us in the Pittsburgh area did that for years with a few tricky varieties, and they wouldn't still be around if we didn't keep on giving tubers out to those of us who lost them. Gwenos, my avatar image, is one of them. Gorgeous, but the tubers are rather thin and it has on/off years in each of our gardens. I've regained it once, and given it multiple times within our local trading group. I rarely have any to sell.
I had gained and lost Wyn's Eeek! several times, keeping it often as a lone pot root. It peetered out, and I really miss its beautifully odd form. Haven't seen it for sale for quite a few years. Bumble Rumble is one that's still available, and I've been able to keep that oddity around recently... I wonder when it might disappear, too.