Simple--all ties you may have to the realm of sanity...
It leads to a great many adventures for many, many years that other sane people will look at you for and say to themselves "He use to be so normal... What happened?"
Sorry--I'm usually referred to as the local gun-nut in my neighborhood. Most of my neighbors could arm a battalion--and I'm the nut...
Unless you're looking for new equipment, get a reloading manual, and read it many times. Make a list of all the things you decide you'll need from what you learn, and start shopping. Hit garage sales, forum WTS listings, etc. You can climb into some pretty nice used gear pretty cheap when some of us nut-jobs do a little spring cleaning.