I think decorated colourless glass is just for those of us fortunate to be blessed with good taste

Bottom line is probably that people's entire view of their surroundings has changed. We have left behind C19 ideas of conservatism (didn't they once cover the legs of pianos?) - and after all, if given the chance of filling our lives with colour, we now jump at the chance. And yet having said that, it's also very true that the Victorians, although very prudish, were nuts over the sort of frilly, ostentatious coloured pieces that adorn the pages of Gulliver. Also maybe a lot to do with simply whether you're someone who sees art in conceptual artistic contemporary coloured glass, or whether you're drawn to the skill and beauty of much cut and wheel decorated material. I enjoyed Robert's first contribution ("I'll speak up on behalf of clear ("colorless") glass etc". At the end of the day, I think it's simply personal taste, and subconsciously we like colour more than clear, with a minority of us liking the artistry of decoration by cutting.
Clear, particularly cut clear glass, has had a bad press for many years owing to the mountains of boring cut glass vases you see in every bric-a-brac shop window, and so many people forget, or simply aren't aware of the stunning pieces of post war modernist designs from the big factories on the Continent and in the U.K.
Mind you, I think the Georgian and Regency period knock us into a cocked hat with regard to drinking glasses........some of the deep amethyst, green, blue, and red rummers and wines are unsurpassed...........if you like colour that is. No good if you want to see what it is you're drinking

.
Just for the record, my favourite piece of glass (in my own collection) is a large citrine coloured cut vase from E&L, dating to somewhere around 1950, possibly, with which I get the best of both worlds. I also like the colours produced by Stennett-Wilson for Wedgwood - colours, if you are going to have them, should be subtle - nothing more guaranteed to kill the appeal in something than garish, kitch tasteless colours.