Expired Domain age issue

hello everyone, I have a question, whenever I buy a domain from Godaddy auction the domain age on whois is remained unchanged but whenever I buy dropped domain from dropcatch the domain age gets reset and it started to display the age new ( the time when it got picked by dropcatch) so the question is does it make any difference? How google see it? will google see it as a new domain or what?
please, expert, tell me your opinion.