For those, like myself, not living close to any great outdoors gear stores, Madison is a bit of a shopping hub. They have:
Cabelas,
Gander Mountain
REI
Dick's Sporting Goods.

These stores have sales and some have fishing seminars. 8-)

So, if Copia crowds are not your thing, and you don't like paying to enter the store, consider these options. I plan to to do some shopping before/after Copia. ;) 8-)

Perhaps some Madtown locals are aware of stores I may have missed. ;)