Whilst i'm not a huge fan of all the collector's editions which exist, here's one which is well worth buying. Particularly since, at the time of writing, it's just a touch more expensive than the regular version.
A lovingly packaged product, which comes with a pleasing booklet and some worthwhile bonus material. The big upside is that purchasers will be rewarded with being able to familiarise themselves with the mythical "reverb-soaked" mono mix. I was fortunate enough to be able to acquire an inexpensive copy of this vinyl rarity, some ten years ago, but this deluxe copy will enable me to enjoy the mono mix a bit more regularly.
The second cd is given over to the supposedly more "compressed" stereo mix of the album, as released by the short-lived line-up of Jethro Tull with the excellent Mick Abrahams on guitar. The group was into a more blues-based sound, as was somewhat fashionable at the time. (Check out the Cream/Clapton-inspired cover of "Cat's Squirrel", for example.) But this album stands up as being a really excellent debut release.
And the bonus material doesn't disappoint in the slightest. There are numerous tracks from John Peel sessions, a couple of tracks released in single form, and there's even the "Sunshine Day" MGM single mega rarity. This is one collector's edition which can wholeheartedly be recommended to anyone who is unfamiliar with this release. And also those who are.
PS. I must say that the mono and "new" stereo mixes generally sound pretty similar. However, "It's Breaking Me Up" and "Cat's Squirrel" sound somewhat different. As do the vocals on "(A) Song For Jeffrey". "Cat's Squirrel", in particular, sounds fabulous in mono and shows Abrahams, Bunker and (particularly) the under-rated Glenn Cornick as a really decent power trio. And check out the mono mixes of "Love Story", which is a bit different, and "Christmas Song". The latter strangely loses the " 'ere Santa..." line.