I grew the Kablooms last year and had really good luck with them. I will overwinter the plants in the GH and start more seeds this spring. I bought a very expensive, large package and a smaller package. I have put the yellow ones on my wishlist for this year. If you compare what a plant costs to what a seed costs, it's much cheaper and I love the Calibrachoa in my planters.
I have Harris, Johnny's, Twilleys catalogs so far. I already placed my order with Baker Creek without the catalog this year. I really don't need seeds but I always find a couple I just have to have!