Some of the epic hikes are limited only by our imagination. That is naturally my humble opinion but the limitations are also set by our gear.
Hiking boots can end any hike really quick. If there is no comfort while walking – there will be pain and plenty of it. When leaving for a challenging hike you must have a “trusty” and broken in pair of boots.
Hiking in Appalachian trails require some great shoes. You (and your feet) will appreciate the investment.
There are plenty of the online retailers who offer great shoes. However, it is important to try the shoe, to touch it – I like to do this in the store. Then you can check the online options if you are sure about particular type.