InvisibleShield almost half off

I had looked at the Zagg InvisibleShield for my phone, but on their website the product, for the full body (front, back and sides) is $24.95 plus Shipping.

I found this product (original, same manufacturer) on Amazon.com for $13.88 plus a reasonable shipping price.

I really love this product, it really does protect the phone, and just looking at the phone you don't even know it is there.  If you haven't heard of this before, go to http://www.zagg.com and watch their video.  You also get a lifetime replacement warranty even when bought at a different location.

Anyway, you can find them here (you have to scroll down a little bit to find the lower pricing)  http://www.amazon.com/gp/offer-listing/B001QGGHG8/ref=dp_olp_new?ie=UTF8&condition=new

can someone tell me why its harder to use my phone with invisible shield?
for example my fingers dont slide smmothly on the screen anymore and moving widgets
is harder. also scrolling on the internet?!?! is there a way to fix that?

lol yeah same

but sometimes the protector interferes with the touch screen and so the screen isnt as sensitive
it has something to do with how the protector is made or how u put it on