There are vendors I do like to see, but whether they'd be good hosts depends upon how comfortable they are out of their vendor comfort zones.
I love Meredith, for example, but I watch to see what's she's cooking way more than I do what's beng sold. I remember she did have her own show for a short while, but I never followed closely enough to know why it ended.
In the end, though, it's product that sells me - not the host or the vendor. I'm not sure that was true for me so much when I was new to TV shopping and often watched to more or less evaluate the marketing, but now, it's decidedly product and needs over hosts/vendors.
This past week, I watched about 10 minutes of Wednesday evenings kitchen show and bought a can opener. Thursday, I watched Susan and Pat and ordered a pair of pants. Except for my AD list, I'm done shopping for a few months. Maybe I'll be surprised to see who's hosting when I'm ready to shop again, but for now, I'll watch the news, some baseball, PBS, and some movies.