Excellent price if you have the first box set and need all the studio tracks you're missing. Or if you have no Led Zeppelin at all and don't mind having the tracks all jumbled up you can buy the first Led Zeppelin (box set) from the The Hut for £16.93 giving you a total of £26.92 for all of Led Zeppelin's studio work.
The Hut link - http://www.thehut.com/hut/1075314.product
This boxed set features the rest of English rock group Led Zeppelin's catalogue not included in the first Led Zeppelin boxed set and includes the previously unreleased studio track "Baby Come On Home". Between this box set and the 4-cd box set every track from the band's 10 studio albums are featured along with 2 BBC live recordings; the bands only single b-side track; and 1 studio outtake.