Reddit mentions of WLToys Quadcopter RC Battle Ship with Onboard Camera, 4 Channel

Just about 34k actually but what did you expect for something with an HD camera, wifi and the ability to do flips and hold a position in mid air.

The Indian Amazon has cheaper ones like 8k and less.

I'd suggest you find your local hobby shops, find out what they carry for brands (so you can get parts on short notice when they break, and they will break constantly with newbies using them) and then go in that direction.

I sell these things everyday, and the marketing of every brand will tell you that their stuff is indestructible. They all lie. I can and have seen everything break. Especially those who trumpet their indestructibility the most..

That being said...

For drones, this thing https://www.amazon.com/WLToys-Quadcopter-Battle-Onboard-Channel/dp/B00AZEALUK is nearly indestructible. I've sold this under another brands name at my shop and it was the best product in our 40+ year history. I would let people I didn't know the ability of use it in our back room and fly with no worries, we could not kill it. This has about a 12" span from motor to motor that helps it stabilize while people are using it. The tiny quads are definitely fun, but tend to be too twitchy for newbies.

Airplanes, the Hobbyzone Champ is nearly bombproof. Its light and made of good foam that can handle a lot of crashes. If it ever does break, just tape it back together with some scotch tape and toothpicks. It's a fantastically simple plane to fly. Just throttle, rudder and elevator. All ya need to fly. It's got a smaller controller with it which is perfect for kids to use. Heartily recommended. https://www.amazon.com/HobbyZone-HBZ4900-Champ-RTF-Airplane/dp/B003DZ35GK/ref=sr_1_2?s=toys-and-games&ie=UTF8&qid=1525570176&sr=1-2&keywords=hobbyzone+champ+rtf That price is silly, at our shop we sell them at 89.99.

Cars, the ECX Brand cars seem fairly durable from a new driver perspective. And Redcat Racing cars seem pretty well built as well. Stick with cars that are slower, slower cars have less potential to break. They will still break, but less often than faster, sexier cars. Traxxas stuff can be good as well, but I'd suggest stocking up on their replacement motors for their brushed trucks. Their recent batch of motors have been weak and not as good as they should be. I would definitely suggest crawlers instead of fast cars. Crawlers, especially within a camp setting, would be AWESOME fun! https://www.amazon.com/Redcat-Racing-Everest-10-Waterproof-Electronics/dp/B00O9MSR78 We sell this one and have had awesome luck with it.

Stock up on the batteries and definitely invest in a charger for them other than the slow-poke one that comes with it. If you are going to be looking to maximise the runtime, you aught to check out lipo batteries. They get a bad reputation, but if you set the cars up right and charge them up properly, there are rarely issues with them. (Always charge them in a lipo bag, and store them in some sort of protective container. I'd suggest real terra cotta pots as they can handle the fire if they decide to go up.)

Boats, don't even try. They are the most needy of r/C equipment. We have neared the time when selling boats at our shop is a thing. Nobody's boats last worth a damn anymore.

I wish I knew what area you were in, I'd love to work with you and get you guys going!

Good luck! if you have any questions don't hesitate to contact me. I've been at this for `over 18 years and would love to help out however I can!

My only real concern with the tello is the size. This was the other "toy" I had as a first round test and the thing was terrible in the air over 30 feet cause the wind just whipped it around.,

i think swiddie might be referring to this.
http://www.amazon.com/Badboy-Quadcopter-Camera-Arrival--QuadCopterCity/dp/B00AZEALUK/ref=sr_1_3?ie=UTF8&qid=1370739784&sr=8-3&keywords=hexacopters
The user comments might be interesting to you.