@parados,
I believe few people care about how many cell phones Hillary had over time or how frequently she replaced them. Instead I suspect the concerns relate to a series of implausible and indeed somewhat tortured "explanations" for the great trouble she went to in creating a private server for her e mail correspondence, including her official communications as Secretary of State, and doing so in clear violation of Federal Policy and even State Department policies she issued herself applying to all State Department Employees, including herself.
I don't doubt the validity of her concerns about privacy in the very fractious political world we inhabit today. However, her actions removed her official correspondence from access in State Department responses to FOIA requests ( a matter of Law), and more importantly put that correspondence at great risk to hacking ( which might leave no trace at all). This was clearly a serious breech of her responsibility, and finally, as information she was required to protect was involved, of law as well. (I know you will argue she wasn't indicted, but it is obvious from the substance Director Comey's remarks that a political fix was protecting her).
I believe the most important issue in the public mind is the pattern of rather inept deceit and lies so transparent as to make one wonder about the state of mind of the person who does it so habitually. Is she that cynical, or does she really believe these rules don't apply to her? What will (or won't) she do when the stakes are even higher?
There is no doubt that most or all of the attacks on Hillary are politically motivated. Its a safe bet that all such attacks on political candidates during this election season are partly politically motivated. That, however, doesn't make them either invalid or untrue.
Moreover there is a certain cynical quality and lack of shame to the Clintonian pattern of lies and deception - they appear not to even make much effort to conceal their wrongdoing, whether it is flouting laws applying to official correspondence and classified material; clear conflicts of interests in having their personal aides employed by both the Clinton Foundation and the government; influence peddling through favors to donors and others paying steep fees for their many speeches, or "accidental meetings on the tarmac at the Phoenix Airport (by parties with no apparent reason for stopping there given their planned destinations).
None of this does the country much good in terms of protecting our standards for the behavior of public officials. Nations become cynical and corrupt over time when such things persist - the end point is something like Argentina, ... or worse. The persistence of slavish claims by her supporters that, since there is no proof of a hacking of her home server, Hillary has done no harm, and no foul should result - given the recent release of previously undetect hacked data from the DNC servers is likely an indicator that some damage to the nation's standards has already been done in this area.
We face a real Hobson's choice in the coming election, and the country is in many ways more divided and polarized than at any time in my memory. I fear that little good will come out of the forthcoming election, no matter who wins.