the csr doesnt have the information or for that matter the time frame on when LTE will be in florida..not to mention if they DID actually have it...they cant just give it out. the majority of the new LTE network is supposed to be done by 2013...majority...in your case i would hold off until the LTE is actually there THEN upgrade to a LTE device..personally im not in a wimax area...and the only time i do get to use it is when im at training...which isnt often..so for me its no big deal upgrading to one of the new devices and then just hope i do get LTE at some point. aside from that it wont affect me in the least since i'll still be using the current 3G anyways.
I am assuming you have one of the 4g LTE phones. What area were you in when you received 4g LTE service. As we have not turned it on officially as of yet. What kind of speed were you getting? WiMax is available in several areas you may have gotten any where from 3 to 10 MB.