That’s a shame, solar panels bolted onto traditional roofs look so gaudy… solar roofs blend into architecture well.
I've seen people who were quoted $35k for replacing their roof with a non-solar roof and $50k for a roof with solar shingles. Because the solar shingles were an integral part of the roof the whole roof counted for the 30% federal tax credit, bringing that $50k down to $35k.
If they had went with the non-solar roof with a separate solar system installed on top of it the tax credit would only cover that system because the roof is not part of the system.