I agree with the LTE part of your complaint...but I do think that some will like the EVO 4G LTE, due to the specs of the phone-1.5 dual core processor, Android 4.0; big battery, Beats Audio, 16 GB internal with external memory card slot, large screen, thin phone..etc

So, to answer your question, some might upgrade to one of "these 4G phones" not due to the 4G,since it is not out for Sprint, but because they actually like the phone...