I am coming from an Evo. Sprint has had a network outage / capacity issue in my area so they have allowed myself and family (3 Evos) out of contract with no ETF. All of us love the 4.3" HTC form factor, so this is a logical move. As well (hopefully) LTE will be available soon here.

Actually get the new phones on Monday through Amazon ( $175 vs $249 times 3 so a no brainer choice really). I expect to break even on the sale of the old phones and the cost of the new. So a nice 'free' upgrade 9 months after the first purchase.