Decide I can live without shonen manga and use the old issues for kindling?
I dunno if you reached a decision on this last month and all but for god's sake offer to sell them to one of us first you heartless brit.
I'm open to offers, but the postage would be exorbitant. It's fifteen kilos or 33lbs of books, measuring about one cubic foot, and costing something like $120 to post internationally.
Good stuff: It's roughly equivalent to ten volumes each of Hikaru no Go, Yuyu Hakushou, Naruto, One Piece, Yugioh, Dragonball Z and Shaman King. Advantage is that to buy all this in graphic novel format would set you back $556.50, and this is in large format with bonus guff like interviews with the authors. It's also got series like Yugioh that are entertaining early on, but you wouldn't buy them separately. Paper manga is straightforwardly superior, and these back issues are now hard to come by.
Bad stuff: I'm missing five issues from 2003-2005, and most issues after that. All series are available in scanlations, which are freely available and better up to date. If you only want two series it's better value to buy the individual volumes from Amazon, even if I only sold them for a dollar plus shipping each; for three, still better value if I sold at $3 each.