Well, looking at those prices, you have to remember that you get what you pay for. Being a diver who hauls all of my scuba equipment with me, I would recommend that you rent the equipment as the rental equipment will be better than that found at a sports store. A good mask goes for around $49.95 and a decent set of fins will run you about $89.00-$99.00. A good snorkle will run you about $15-$20. Those cheap items are just that. You will have a much better experience with quality gear.