I'll use a crossbow during shotgun season. We don't have rifle season in Ohio,but crossbows are legal during archery season as well. 2 reasons for it
1) I don't have to buy a shotgun and slugs.
2) A lot of the areas I hunt are so thick that I can't see far enough to make a shotgun worthwhile anyway. A deer will be within range of my crossbow by the time I see it. I spent $250 on my Horton and the accessories for it and it's pretty good out to 30 yards. I've never tried to push it past there but the way it shoots I would guess that accurately it will go to 40-45 yards, I just don't know about speed and don't want to just wound an animal.
A third I guess would be I just love shooting the thing. It's cool as hell.