Never seen a colored manga T_T.

Mm, that's a difficult thing to decide. Scholastic's colored Bone graphic novels cost only $10 dollars for about 200 pages. Given the good quality of the paper and the beautiful coloring, I'm still not sure how they pull this off.
For a colored manga around 100 pages... I don't know. I would have to take into consideration the cost of goods sold. Hopefully that would leave the manga at at least $15 dollars, because I would not want to pay any more than that.

several factors comes into this but the number one is if I realy like it.

other this are, -the size of the book (A4 vs B6)
-amount of pages
-quality of design
-popularity (mostly cause the more popular, the more expensive the book may be)
- and if I have some sort of personal connection.

printing in color is VERY expensive

lo,. I don't hav emoney to buy comics let alone colored and they are aslwasy so expensive, well more liek I'm a little on the poor side but hey I really liek them in color......especially when its color like yours, you are good with colors. and it can make things less confusing.

whatever the price, as long as the art is good and the story sounds promising.

The whole manga is coloured? O_o
It's hard to make a price ne.
I hope it's quite comfortable to afford is under 10$
But for the coloured one I give no over 20$.
MoRi

i buy for under $10 cause im always broke

I usually buy Naruto and FMA manga at borders for less than $10.00 in the US, but considering that this would probably be a shipment, it may fall around more. I voted under $10.00, but as long as the price isn't over $25.00 I'd most willingly make a purchase.

Where's the choice over 25$?

Like everyone else, to me it's about size and how bad I want it. If it was released originally in smaller format then was bound altogether from issues 1 - 20, say, then I'd probably be willing to pay for those 100+ pages from 20 - 25$.