Think about it this way; would you rather spend about an hours looking over and printing out SpongeBob coloring pages, or would you prefer to drive all over the place looking for a SpongeBob coloring book? The answer to this really depends upon whether the website, or websites, you are visiting have the coloring pages of SpongeBob Squarepants that you really want. Chances are that the website/websites that you decide to look on will have the images that you are looking for; yet you might not always find what you are looking for out there. Do you realize that you can have as much fun looking for the SpongeBob coloring pages that you want as you will when you sit down to actually color those pages?
You have a greater tool - your PC - that can be helpful to get the printouts of diverse colorful sheets. Guide the children, exclusively during the holidays to add illustrations to the colorful-page, and showcase them around the prominent places of the house. This will give them, a sense of pride and joy for their creativity, and would lead to further productive pursuits. Thus, you will witness that there are massive advantages of coloring-page relatively to coloring books. Coloring sheet are economical, costing you only a couple of cents in ink and paper rather than a few dollars for a coloring book.