Not everyone can afford gym memberships and even if you did pay $10 a month at Planet Fitness; it won't have the type of things that can truly make you crazy strong and feel good about yourself both in and out. Besides you can build your own gym in your home or garage on an inexpensive budget if you play it right. Trust me though, buying machines and a bunch of useless infomercial fitness will kill your wallet, like the knight in Indiana Jones & The Last Crusade he says "You must choose, but choose wisely." Spend your money on things that matter and when it comes to fitness, do your research and put what you spend on for real strength and health.
When you really look at it, some of the best workouts are free of charge; things like body weight exercises, lifting heavy rocks, climbing a tree, playing on the Ape Bars and running sprints at a big track or field. When in doubt and want to still get strong, you can always have those when you look in the right places. You have options most don't ever realize and you can be one of those unique people who can expand their minds and look to fitness in a whole new light, plus it doesn't hurt having a great system of exercises you can tackle for free at Darebee, those guys show you that some of the best training is right there and don't need to pay one red cent.
If you happen to want to get some equipment, get things that are the real deal, none of those thousand dollar machines or a dumbbell rack that can turn to rust (however having a few dumbbells and a barbell with plates wouldn't be a bad stretch). Save your money for what you'd like to get. I once saved up to get an epic sledgehammer because I loved the type of training it brings. Took me a while but I made it happen, get some cool cables from Lifeline USA or the Power Wheel to really hammer out those abs you seem to want. Get DVDs that aren't in the mainstream that are unique and training that is not always heard of in the main fitness world. I'm not saying go spend thousands of dollars on a bunch of stuff, build up to it and save when you need to for your house, family, food and supplement activities. Money isn't the root to happiness.
Use your budget wisely and treat yourself to a cool "toy" to use for your next training session or get courses that spice up your learning and research what they're about. Youtube can be a great asset for research but it's nothing compared to learning from a real master of his trade and shows you what you can do for yourself and not bust your balls just so they can make a buck. Save up for a seminar you wish to go to, make it happen for you and do something worthwhile to you. Even if it takes you a couple years to save up and you only went for 1-4 days, if you're determined, it will come to you. Invest in your health, not useless knockoffs.