Saw this today a 400 size 3d quad with transmitter (admittedly the orange T6 but still a perfectly functional if cheap radio it's the one I have) for 139 dollars on offer
it's actually more expensive to buy it without the transmitter.
Doesn't come with battery so you're looking at another 20 bucks or so per battery and no FPV so another 40 bucks to add that.
Probably not the best quad but for that sort of money probably a pretty good starter unit with the option to try 3d flying at somepoint
I was tempted but
1) I already have enough quads to be getting along with I don't have time to fly
2) I can barely fly in acro mode let alone 3d mode
3) it's a little bigger than I like for a quad (although it's still smaller than my tricoper)
4) I'm trying to save money
5) I don't need another orange t6 and it seems silly to pay more to get the version without that for an extra 100 dollars
heres some videos of it flipping around like crazy in the hands of someone that knows what they're doing. https://www.youtube.com/watch?v=YFKEIzhqtN0