an inexpensive (in the long run) suggestion. a bit off topic...if you want to color larger areas without the expense of copics and get the non streaky look, use colored pencils and a CLEAR alcohol marker, such as a copic.
I got excellent results doing this. the marker will melt the crayon and then you can blend without tearing the paper.
Stamping and a serial novel, "How Stamping Destroyed My Life"