Why buy when you can DIY?

For those of you that have been living under a rock recently, you may not have heard of the incredibly popular website 'Pinterest.'
I'll start by saying...I'm addicted. It has all sorts of categories to look at pictures from weddings to home decor to gifts to recipes! But the category I'm obsessed with...Do It Yourself, or better known as DIY. It has everything imaginable to make all buy yourself! Which is a lot cheaper than buying it from a retailer and also a lot more fun for you creative types! Everyone that has an account and post pictures and instructions on how to make these fun crafts! Even I have participated by uploading the Christmas ornaments that I make and sell during the holiday season!

But here's the question.
Will the people that make these crafts and sell them for a living lose their profit?
Does the economy have an effect on this and why more people are making their own things rather than purchasing them? Would you rather make it yourself or purchase it? Will the home-made craft have more poor quality?

But you should buy an ornament from me :)