Need Beer and Mustard
Join Date: Nov 2009
Location: District of Columbia
Device(s): LG G2, Moto G, Galaxy S3, Galaxy Nexus LTE, Nexus 7, HTC Flyer
Thanked 5,369 Times in 3,529 Posts
If your phones are still working fine, stick with them until the S3 comes out (though, that may not be for a while). As for the cracked screen, if it's unbearable, look for a used phone on ebay or Swappa. Personally, I don't think this is the time to use an upgrade as Sprint hasn't put out a new phone since the S2, which is soon to be outdated.
If you do need a new one, I'd at least wait until the Galaxy Nexus comes out (it's what I use and love it).