Hi, I have bought a pair of old decoltissimo 85s (from 2007) which claimed to be worn twice and don't show much upper wear, but have quite a bit of sole wear. Will putting vibrams on them reduce their value? I am unlikely to wear them very often as the narrow toe fit is challenging. I ordered some vibrams, then found mm7 and am now in two, well three, minds as to what to do! Help please! They are my first pair of Louboutins so I am not at all experienced with them... Thanks so much!