Those "motorcycle boots" look like nothing more then a high top basketball shoe.
Comfort or protection? Thats a scale you have to decide on whats more important. Yet, with expensive boots they offer more features that give comfort and protection. Also have to decide if looks are important. When buying boots I rate my decision on 1) Protection 2) Comfort 3) Weight 4) Style.
Not really sure what you mean something you can be in awhile? I have worn my Sidi's full boot 12+ hours riding and walking.
Do a google search with keywords "motorcycle foot injury" I would post some pictures but they are VERY graphic. The foot and ankle are very important in order to walk properly and protecting them while riding has different views to a motorcycle rider. Remember accidents arent planned so prepare for the worst and hope for the best