If your only getting it to host then don't, it would be a waste of a jtag while it's in your hands

this is like the fourth question i have answered for you in a few minutes JTAG's are always worth buying in my opinion as you can do basically anything you want with them that is in reason,you can play emulators which are really fun and time consuming but you can get free games via downloads and can mods any game but the most important thing in most people is the online capabilities and with that only a select few can go online but i pre fare them offline as you have more fun messing around in games you may want to think about what you really want a JTAG for as if it is for CODor online mods than i would tell you not to buy one but if you want it for emulators or new games without the hassle then yea go ahead and buy one

i hope i gave you a good reason to buy a jtag