[syrrim]

>replicate an existing design in photoshop

AFAIK, the majority of designs are created in photoshop or illustrator. No conversion nessecary. In any case, I would consider it a liability if I didn't have my designs in an editable format. What if tommorow I realized I wanted a variant in a different color? Or I decided I wanted to use a different background? If all I had was a bitmap logo, I would consider it worthwhile to have someone change it into a scalable format anyways, even if I wanted to transfer them as PNGs.

Also, numerous free tool exist to convert bitmaps to SVG. Using one of these, plus some manual smoothing and correction, I'm sure the conversion would take no more than half an hour.