I currently happily vape the Ody. My wife is in love with the iAtty. And she has several. There tends to be a personal preference choice in how a
device performs. And dspin also mentioned another factor that is known. If you dislike the clear window enough, and happen to love the Ody, then the Ody will be preferred by many.
There has been some demand to resurrect the iAtty. And therefore, it's back on preorder. (Wish this was the case a few months ago, but still).
Add to all that, the Ithaca has been mentioned and will not be ready for some time. The Ody specs are ready, and it seems that it's an easy re-release for another preorder on it. I don't mind clear window for some juices. In fact the juices I vape in a GG doesn't touch clear windows. So personally I prefer to have Ithaca released sooner, but, knowing someone very close to me that prefers the iAtty over the ody and the Penelope, I certainly understand why some would request a preorder for it.
My two cents