I get them for shops in my area regularly. The bulk are for two types of shops that offer a $2. If I schedule in advance. I do see some $20 offers when the regular base is $8...that is still not enough to entice me to reply.
I've noticed two things with this, $2 is not as much as if I just pick it up closer to the shop date. Usually it's up $6. The other negative, for me at least, is that I would then miss out on any potential 'make an offer' jobs at this location because I would miss seeing how the month plays out up to the time I would have accepted with the email offer.
I'm not in a huge area, maybe only 3 or 4 other shoppers in my city (I think) but once I see shops falling off my list - I know I'm in a better position for the fee increase since they now knocked themselves out because of the rotation.
Also doing the same for the rental item client with this MSC, they post scheduling weeks in advance, but if I schedule 1 location..all the others fall off my potential list for this client. I'll wait for the other shoppers to pick thier location at base and I can sit back and wait for the make an offer function and pick up my location at this point.