Jvor50, I looked into Skyera. They are actually way too costly. The skyEagle product is over $180K. They are doing the same thing Pure is. They claim $1.99/GB but that's ONLY for a maxed out system. If you want 10-20TB then it's far more costly. They could only offer a non-redundant system (skyHawk) for under $100K (barely under).
Tegile is just going to wipe the floor with all of those vendors in the next few years IMO. Out of all the systems I've quoted they offer the most.
PS - I sent a response to your PM.