It's just what many artists do these days, regardless of how much they may decry the overweening consumerism of Western society.
From Rolling Stone:
Paul McCartney, who plans to reissue the entire discographies from his solo work and Wings, will begin on November 2nd with a deluxe edition of Band on the Run. McCartney himself oversaw the reissue of the 1973 album, which was remastered by the same Abbey Road team responsible for last year's Beatles remasters. Band on the Run, one of Rolling Stone's 500 Greatest Albums of All Time will be available in a one-disc version and a three-CD, one-DVD deluxe edition with bonus cuts, an audio documentary, music videos and more.
And here's what the John Lennon of this alternate Beatles world had to say about the music industry's addiction to reissues:
“Look,” he says, “every month is the anniversary of something that the record company can repackage and resell to you in re-digified-nanofied-retromastered form for a luxury fee. ‘Here’s the 47th-anniversary edition of the alternate take of “From Me to You” with John playing lead because George was off having a wee. Pre-order now on iTunes!’ It’s a con. But a brilliant one that keeps me in ruby-spangled codpieces and caviar hosiery.”