Will the market get oversaturated with PLR websites?

Site flipping is very popular these days and I myself earn a great income by creating and selling affiliate websites.

Recently I have been looking into these PLR sites that offer full PLR websites with their own Clickbank ready product. These PLR membership sites give these PLR packages with the purpose of the members then flipping these websites to make a profit.

My question is that if there is a PLR Clickbank ready website package for the dating niche (just as an example) and 100 members all have access to this website package and if even 50 of those went out and put the package onto a domain then listed it for sale on Sitepoint - surely the 50 buyers of these websites will not all get their sites approved by Clickbank.

Isn't the market going to become oversaturated with the same website package being sold over and over again?

These Clickbank ready websites seem to sell really well on Sitepoint which is the reason I decided to look into it, but to me I just can't see how it will work with too many of the same website being created.

Sure you could change the ebook to make it unique, but if you have graphics including flashing banners etc most people wouldn't know how to change those so you'd have many of the same graphics out there.

I would love to hear some other opinions on this - is flipping PLR websites a viable business plan to follow or is it just becoming an oversaturated market.