That's definitely true--but the golden age ability seems weak, or at least, not special compared to the abilities of the writer and musician, which are both more directly tailored to advancing a player's cultural goals, even if you don't use them to make great works. Again, I'm not sure what to replace it with--it probably is the best option, even if it's not all that exciting. As for banking GP--that should always be an option, but I shouldn't have to consistently bank my great people because they have no use for me at a given time, at no fault of my own. Then it's not good strategy, or an unfortunate result from poor choices (both of which are fine)--it's poor game design. Wonders are always going to feel a bit "lucky" depending on what strategies the AI is pursing. If I miss the Sistine Chapel, then what? That's the problem--artists are reliant on wonders until archaeology, which comes comparatively late. I think it would be nice for some buildings and wonders to have slots that could fit various kinds of great works--or allow buildings to house "mismatched" great works at a cost. One could put a great work of art in a theater for example--but have it's output reduced by 50%. Or, maybe a better choice, give temples a slot for great works of art or music. Religion was the repository for many great works in early ages--it would be a logical place to add slots.