(^Link. Also: Flickr.)
Some of these are gracing my collection (and will look great when/if I frame some favorite covers), some are being donated to the BrickFair charity auction, and some I'm saving for sale/trade later (or now, PM me).
Some of the variant covers paid homage to covers that appeared a few years back:
And just to be clear, only these variant covers are LEGO-ized. The contents are the exact same normal art as one would find in the regular cover comic.
While variant covers are most certainly an easy gimmick to boost sales and perhaps gain new readers to a title, sometimes the price is right and the cover is cool enough to accept that. (What I won't do it pay way too much for a cover.) LEGO did this with Marvel last year for LEGO Marvel Super Heroes, and I was able to grab two (donating Wolverine to BrickFair's auction).
What's next? I'll continue to collect and build superhero minifigs from all my favorite titles!