This is in regards to the regular screen protectors, not glass. So I ordered the tech armor 3 pack (just 99c with free shipping!). Hasn't arrived yet, but I'm wondering.....I've heard that there IS a big difference in quality between expensive screen protectors and cheap ones. However, I've also heard that tech armor is one of the best brands. I basically paid 33c per screen protector. Is it really worth it to pay upwards of $35 for the zagg invisibleshield ?! What could it offer that the 33c tech armor one does not? Maybe it is clearer? Haven't received my tech armor yet