At this point in time, I think its silly to get, but only if you plan on buying a next gen console. If you're staying current gen, then invest in one.

Im staying at 360 dont see the point of buying one of the new like the games is coming to 360 also right? and i dont have the money

I have a jtag and I have to say it is not worth it what so ever, It was worth it back in the glory days when you could play online with friends on tu8 and such but now a days its not as fun to mod things because of all the restrictions and its to expensive if you want to host online for people. I suggest not getting it but its up to you.

Dine dont you think it worth it i gonna stay on 360

Honestly, its a waste of time and money If all you are going to use it for is to "host lobbies".

Personally i wouldn't bother, coming from a person who sold his trinity rgh. if you are going to use it for emulators and such then go ahead but it is pointless otherwise.

(p.s played pokemon gba emulator ;p was fun!!)

Like others have said, if youre going to use it just for hosting lobbies, not worth it.
If you wanna learn more into it like coding wise, do it, its so much worth it. It might even help you choose a career, at least thats what happened to me.
And most games wont be made for current gen consoles, IW said theyre not gonna make for 360 and ps3 next year. Wouldnt doubt if everyone else says the same thing. BUT i also heard that xbox one is going to somewhat switch to digital copies, which means no files, no xex's, no nothing, no mods... :/