Professional fonts can easily cost over $200, 'cause it's a ton of work creating them, so that taken into consideration, $30 isn't that much for a font actually, even if it's just for personal use! ^^
For people looking for professional fonts to a reasonable price, I'd try mightydeals.com. You can get plenty of high quality fonts for a very reasonable price, and it's totally legal
Other than that, I've seen people mention blambot.com, which is where I bought mine (for $20).
And then there's dafont.com and fontsquirrel.com, where you can get some very nice, free fonts. It's not so likely you'll get fonts with like 14 different weights for free, but I think you'll find what you need for a comic 