so u are comparing a lens scratch issue with lcd crack!! z1, z1c and z2 all had issues and sony could not get it right? BTW htc lens scratch is not a recurring issue with all the htc models, is it?
can one live with a scratch on the lens : yes, perhaps get it fixed for a minor cost
can one live with a crack on the lcd screen: hell no! pay half the price of the phone!
i have been using a sony xperia sp and it had network issues, when i went to the repair center they told me that it was a physical damage and i would be charged..lol i couldnt believe it!! and i know i never dropped my phone ever or it never went any physical assault...
i am not saying that all sony products are bad (heck i use a pair of 4k sony earphones and they are awesome, check my signature), only that their xperia series seems pathetic backed up by their awful sony repairs team...
peace