I like hunting, but I like the killing part the most, and a crossbow helps me kill critters. I have admitted on many occasions that if Alabama would let me gun hunt during bow season and on bow-only WMAs, I would do so. And I worked in an archery shop for 5 years and have a press on my back porch!
After I've killed 100 deer or so, I may calm down and start shooting a strugglestick.
As far as challenging and the whole "rewarding" thing, I get my kicks killing deer that anybody else with $30 for a license could have killed. If I kill a buck after canoeing 2 miles, walking another, and hunting hard all season with minimal deer sightings, imma be pumped regardless of what puts a foreign object in the diaphragm cavity.
Shoot the deer. Shoot them with rifles. Shoot them with pistols. Shoot them with blowgun darts. Shoot them with arrows. Shoot 'em until they tell ya you can't shoot 'em no more, and then go bass fishing.