While searching for info on what has changed in all this time, I found a great website that aims to gather all available models, The Stuff of Legends.
Inside, we have the Citadel Miniatures archive, and I found some really emoting plastic sets I own since I was a child. First image is a sample one, second is/are my painted model(s).
The old MK6 armor Space Marines:
The Rhino APC:
And the Land Raider tank:
If I just had known back then that now would be extinct...