I mean, they all say things like "The Most Complete Back Issue Catalog On The Web!" and then you type in "Transmetropolitan" and they say "Series Not Found". Like, WTF.
And eBay sucks for single issues. Sure, if you're missing, say, ALL of them, it's easy to find. Or if you're missing a large set you might be able to pick up a good number of 'em. But if you're missing, oh, say, #8 and #31, you're basically fucked.
And so here I am, with single or double-issue holes in half a dozen serieses, and absolutely no way to fill them.
That's all I have to say.