Bosu balls retail for $145 and in secondary markets are usually priced between $50 and $75.
The Ignite (8-10-12#) dumbbell pairs retail for $34, $40 and $46 respectively and can be found in secondary markets for around $1/lb or $60 total.
The Reebok Neoprene dumbbells are certainly the runt of the dumbbell litter, but still worth $0.75/lb
The Danksin weighted ball had such poor reviews that I am tempted to toss it. No idea what retail would have been. I am guessing $10. It could be worth a couple dollars to a potential buyer.
Overall, I feel like I picked up a retail $285 worth of equipment ($130 conservative secondary market) for $65.
I have considered selling the dumbbells, but I think they would be really good for my wife and daughters. They are certainly much nicer than the cast and vinyl coated light dumbbells we have at home. Maybe I will try to sell those for $1/lb.