Oh, honey, don't ever pay
retail price for manga! That's like highway robbery.
wink
You want
Dengeki Daisy? Start with GoHastings.com. They sell New & Used books, and right now they're actually running a 30% off sale on Used books (code: ZIP-A-DEE-DOO-DAH). Their Used books are very good quality, so no worries there. They've got
volume 1 up for $5.45. With the discount, that's $3.82. The other volumes are $6.61 or cheaper New. That's about 30% off when you factor in tax (shipping is free).
There's also someone selling volumes 1-7 on eBay, but that looks a little sketch. =_=
For Kamisama Kiss, unfortunately, it doesn't look like there are any Used books in stock. However, $6.61 still isn't so bad. At least it's not the cover price?
$6.61 x 15 books seems like a lot--- and it is--- but that's just because you're trying to catch up. I've been buying both of these series since they started publishing. $13.22 every couple of months is a lot easier on the budget.
sweatdrop
If you plan to buy a lot of manga, then it might be beneficial to get a Right Stuf membership. They run different sales each week, and they'll probably have a VIZ sale at some point. Their membership stacks with the sales, so you can end up getting at least 38% off the list price. There's no tax if you're outside Iowa, and free shipping starts at $49. Ah, but don't buy the membership unless you think you'll spend at least $120 at their website over the year (it costs $12, and you get an extra 10% off).
...as far as "do I plan to buy manga?", the answer is YES.
lol I'm up to 2k volumes so far, with no sign of stopping. I like the stories and I want to support the creators, so I always buy and never read scanlations