If traditional photography was more of a mainstream thing, more business customers would patronize the business during the week but, since traditional photography is basically an avocation, these days, I believe opening on Saturday would invite more business from people who couldn't visit M/F-9/5. The loss of one weekday would, hopefully, be covered or even exceeded by Saturday's business.
Further, I would like to see this business develop a website. If he did, I'd be likely to patronize via the web.
As it is, now, I use Freestyle, B&H and, occasionally, Adorama. While these are all good places to do business, I would certainly add Victory to my list if I could. Regardless, it's almost always better to have more choices of businesses to buy from.
Fingers crossed! Let's hope that Victory means victory!