RE: Is it less challenging if you have tons of deer?
Yes, there is still challenge, but definately less than in places with fewer deer. It makes it easier to get kids into hunting (more action), but also usually means less monster bucks and more habitat destruction too.
In WV a few years ago, two buddies and I hunted my place one whole day dark to dark, then the next morning until about 10:30. We EACH saw over 50 deer, but only probably two that had 6 or more points (couldn' t see them all that well), and neither was a real nice buck. I would rather see less but have quality deer and not have browse lines where nothing is green under 6 feet. At the same time, I would rather see deer than not see them at all because they are too few.
By the way, every few years there is a bad winter there where deer starve and it helps to keep the population in balance somewhat, but they bounce right back quickly.