I have the option of getting a mint condition (10/10) Blackberry 7100t (I would need to unlock it) for $70 USD shipped or an 8.5/10 unlocked Blackberry 7105t for $85 plus shipping. To me the 7100t might seem like a better option but I have heard that the 7105t fixes a lot of important problems of the 7100t (i.e screen less prone to scratches, more visible in direct light, better reception, better voice quality, better keypad) so do you think that its worth the extra money upfront for this phone?