Although I'm not into deck builders (in fact it was my very first one) it captivated me for two complete runs. I didn't beat the 100 def boss though.
Really, is it such an exotic phenomenon? I mean, don't you have any thing in your life that you didn't try because you didn't feel the vibe? It's not even a logical contradiction whatsoever - it's impossible to be into something without even trying it.
But yeah, you're right, I should check them out.