Skiing in the sun is simply more fun.
I've taught at Whitetail for 15+ seasons. The SE facing slopes receive more direct sunlight than NE facing slopes would. This causes snow to disappear faster. WT "makes it work" by making snow faster than it melts. Making snow costs big $$$$$. In theory, NE facing slopes require less snow making expense or get more ski days for the same expense. SE facing slopes also lose their "freshness" faster because snow warms and then refreezes more than on NE faces. WT makes it work by grooming. Grooming is not cheap either.
How much snow your mountain can hold will be dependent on the temps. WT also spends big $$$ on personalized weather forecasting. If you don't have thermometers set up on your property, that should be your first investment. One degree in average temp can make a huge difference on resort operation. If WT was in Frederick, MD it would have a lot less snow. You need to become an expert on the microclimate of your property.
Have we told you enough times about how to make a small fortune in the ski business: "Start with a large one"? A ski resort is a black hole that sucks in investment $$$. That said, almost every ski resort in the US started out with a crazy person like yourself who loved skiing and had a dream. While many did not succeed, some have. Many current resorts have been built upon the bankruptcies of previous ownerships. You may want to consider partnering with someone who has already learned the hard lessons of running s ski resort instead of having to learn everything the hard way yourself. You may also want to personally visit some of the smaller, privately owned resorts and talk to the owners. So, the answer to your question is "Yes - you are a total fool. But don't let that stop you." Right now, you need to know about a lot more important questions to ask than the ones you are asking, and then get the answers to those before you should be ready to take the plunge.
If you want to get a taste of what you're in for, try getting a copy of the computer game Ski Resort Tycoon
If you want to run a cheap experiment, try a home snowmaking kit like this one
Have you seen the resort boneyeard
for getting used equipment cheap?