My Top 10 list would be:
1. Friendly and knowledgable staff
2. Large selection of spoons from numerous manufacturers
3. Large selection of flashers, dodgers
4. Downrigger replacement & repair parts
5. All aspects of fishing line from mono to copper
6. Assortment of Great Lakes specific fishing rods & reels
7. Ability to renew my fishing license
8. Miscellaneous marine lubricants (motor oil, gear lube)
9. Equipment for being outdoors (sunscreen, hats, raingear, etc)
10. Gear for taking the kids bass or perch fishing when the lake is too rough to go out (worms, bobbers, floats, etc)
Basically, I like a One Stop Shop. Having the ability to run in and get everything you need for a day on the water and not have to run around to multiple places is key for me.