So, when these high tech home buttons go out it will be like a 200.00 repair? I hope not. Surely, they have figured out a better design so these new "mr gadget" home buttons will not crap out like the old ones. I replaced my home button so many times on my iPhone 4 that I put it in the drawer and use my old 3GS instead.
I would rather have seen a fixed home button "area" instead of a mechanical springy one.
It should help alleviate the failing home button problem as I think you don't need to push it anymore if you don't want to which will result in less wear.
If it fails for other reasons though I'd imagine it's gonna be pricey.