Strangely under-achieving title with some quite good strips like Van Hoffman's Invasion but somehow the comic never really got going and got swallowed up into Buster. I think it is a much under-rated title. Free gift issue #1 2 x Super Bumper Fruit Chews never show up. Free gift #2 Monster Wasp adds £10-£15 or so to value. Individual issues turn up on eBay, long runs/sets don't.
#2 sale on eBay UK (Nov 2007) VG/FN copy with gift unused at £22. Note: A near set of 18 issues sold for £70 on eBay UK in Apr 2008. A complete set sold for £119 way back in Oct 2008. No numbers on covers, just dates. You'd think they would have at least put a No. 1 on the first issue for sales and promotion purposes.
A four page pull-out advertisement that appeared in various IPC comics just prior to the launch of Jet fetched £28 on eBay UK in Dec 2010. There seems to ve a new collecting vogue for these 'flyers' though if you have a comic with any avertising flyer stillinside, don't pull it out!
Note: some PR issues may have no value. Selected issues in FN, VF or VF/NM may not exist in some titles.