Realistic minimum purchase price of owned waterfront on Winnipesaukee?

[Onshore]

Please, pretty please, if you are buying waterfront and you have only seen the property between October and early May, find the site on Google Earth and use the history function to look at old summer aerial photos of the site. I can't tell you how many people we hear from that bought open water frontage in November only to find out that it's emergent marsh in July.