Are there any alternatives?
Dozens. The Razer Leviathan and Panasonic SoundSlayer are the most obvious alternatives, but there are several other options for gaming. Those include the Audioengine A2+ speakers and Logitech G560 kit, both of which are cheaper than the LG GP9.
How long will it last?
Without using the GP9 for years, it’s hard to say how long the speaker will hold up. LG offers a standard one-year warranty for parts and labor.
Should you buy it?
No, unless you can get one on sale. The GP9 is too expensive for what it is, and its positive qualities are outweighed by its price. If you can pick one up for around $300, though, it’s an excellent option.