Thats all interesting. I grew up here in N.E. Fl. and have swam in about 9 different pools over my lifetime(here). They are all concrete...and 1 of those was behind a doblewide trailer. None of them have been resurfaced either. I wonder why everyone here appears to chose concrete? My biggest fear with concrete would be what if it cracked,..is it repairable, how often or could it happen? anyone else have answers?