I know what you mean I have decided on a machine now fed up of contemplating so decided to opt for the rebadged F70 in the form of the Teknetics Patriot.. The F70 has a brilliant reputation and by all accounts is a reputable good performing detector..
Price wise it's a good deal to be fair so just have to decide either between Joanallen or Unearthed at Joanallen they offer a Pro Hunter headphones with the Patriot so that might just be the winner ..