Why all the hype?

I am still here...working on my StLMQG Habitat Challenge.  I have the top completely pieced now and pressed all my backing...and then...I saw them...all the extra blocks I made for this quilt and decided for one reason or another they weren't working...  So, what the heck...let's just use them on the back... 

There is the house block that was my first thought...you know HABITAT - HOUSE...{i hear crickets!}
and then I thought about a rail fence...so there is one of those up there, and then the rest is all the leftover fabric that would never be used in anything else so I pieced it all together and this is the result...  and it's now pressed...

and

UGH!  Who invented the idea of a pieced back?  I hated making that back.   I don't think it adds anything to the quilt as a whole...it was very time consuming..and frankly who is going to look at the back?  I don't see me doing this again.  But I do see pieced backs all the time so what is all the hype about?  Do you know?

Nancy