Man, if Frankfurt was two days earlier or Paris two days later then it would be a no-brainer. As is, I don't think I can justify the costs of staying on the continent for an extra 3 days plus the travel expenses of getting to Frankfurt. Not to mention I've pretty much seen all there is to see in Frankfurt, I'd like to spend my money somewhere new even though I do have a bit of a soft-spot for the city. So, as painful as it is, I guess I'll just stick to my plan of visiting Paris / Reykjavik and hold out on seeing Maiden in Germany until another time.