Growing up in the 60s & 70s, I have always paid close attention to the gear on stage as used by all sort of bands - rock, blues, jazz - all the big acts - you name it It seems to me the tweed amps disappeared quite quickly & as of the mid 60s, they were no where to be found... Hadn't been for the 90s blues revival, & people like Baier (Victoria) & Kendrick, I don't think I had ever seen a tweed amp. After this we had a tweed revival of sorts - but still, Why were they so promptly abandoned? this didn't happen to the bf/sf amps, Marshall , or any other famous kind of amps???