Here's why including a vinyl (limited) edition, as the Joy Division group did a few years back, alongside the digipak makes sense...
Sales of vinyl could hit 2m in 2015, and have now been given their own chart by the official top 40 company.
Expensive remastered vinyl packages continue to abound, especially from longer established acts. Adam Ant (huge in the early/mid 80s), for example, is currently taking one past album at a time and reissuing in vinyl as a set with plentiful unreleased material and plush packaging as part of the deal. How does £40 for a Dirk Wears White Sox package sound to you (£60 if signed)? [update, 2016: limited stock/offer, here's the main store link]
Probably a bit mad.
To me? Tempting! Having grown up on 80s music I'm part of the main audience for such releases, tho' the vinyl resurgence also includes new acts targeting teens and 20-somethings. They're just not as likely to find takers for such expensive packages as acts from the 60s to 90s (and perhaps the early noughties now too) are.
I still haven't got a record player to spin the Pixies' most recent album on, but enjoy playing the FLAC files that came with it whilst having the physical LP sleeve to look at - it's common for vinyl to be bought by fans who have no means, or intention, of playing it! Vinyl is highly collectable, and likely to increase in value.