I would like those of you who believe that a 'real' airgun is one powered by a spring as opposed to one containing compressed air/gas, to look up airguns using compressed air... they will find that they are almost as old or older than the spring versions, compressed air/gas airguns have a long history and have a place in todays airgun lineup no matter what they look like, I have both and enjoy both and can honestly say that I get most enjoyment from shooting a SMK S3 that I have worked on and now produces 20mm groups at 7-10 yds, although those with real airguns will probably puke up at the mention of SMK.
Its all in the eye of the beholder.
Ken