Remarkably Affordable

For just $40 Marc W Miller will sell you the entire LBB Traveller aka "Classic" on CDROM.

Dunno why he doesn't just sell the files, but...

I'd a huge hole in my LBB collection where the adventures were concerned.  Since those adventures contain a large amount of Traveller canon, they're essential for playing in the Third Imperium.

Perhaps next month I'll drop another $40 on the complete GDW editions of The Journal of the Traveller's Aid Society.  Scads and scads of good information in those.

It's a pity that the actual rules for LBB are atrociously dated and clunky.  It's fortunate that they use real units for most things, allowing a seamless conversion to GURPS even if there wasn't a GURPS: Traveller for 3e and GURPS: Traveller - Interstellar Wars for 4e.  It's a conversion I've done home-grown twice before SJGames finally hired Loren K Wiseman and licensed the property.  In fact, GT is one of only two sub-forum in the GURPS section at the SJ Games Forum that gets enough traffic to get its own section (Transhuman Space being the other).

It's also a pity what Mongoose did to the LBB rules set when they made their update.  It's kind of AD&D vs AD&D 2e; they're eerily similar, but still very different.  Also; each set of rules has people who like one or the other and it's very polarizing concerning which is better.   I hear that they ask "Do you play Mongoose Traveller?" and "Have you ever played Classic Traveller?" before they issue an entrance visa to The United Kingdom now to keep violence from returning to the levels the IRA maintained.

Personally, I don't think there's a native Traveller rule set that does what I want it to do; which is how I keep defaulting to GURPS for Traveller.

The less said about T5, the better...  At least the current edition of Dungeons and Dragons is an objective improvement over what came before it in game design.