Optionals Advice & Recommendation for a Poor Person ;)

I am doing the Winter Wanderer tour with pretty much no money. It was a choce between don't go on tour at all or go and enjoy the bare minimum.

Anyway I may be able to scrape enough together for 1 or 2 optionals and I want to know which are best.

Here is the list, what do people recommend who have them?

Your choice in Lucerne
>>>>> Swiss Fondue Lunch & Folklore Show (SF 35.00)
Your choice in Barcelona
>>>>> Tablao de Carmen (Euro 54.00)
Your choice in Monaco
>>>>> Monaco Restaurant (Euro 32.00)
Your choice in Florence
>>>>> Souvenir Group Photo (Euro 11.50)
>>>>> Tuscan Evening (Euro 38.00)
>>>>> Space Electronic Disco (Euro 12.00)
Your choice in Venice
>>>>> Venetian Restaurant (Euro 28.00)
>>>>> T-Shirts (From Euro 17.50 - 26.50)
>>>>> Gondola Ride (Euro 21.00)
Your choice in Vienna
>>>>> Dinner and Mozart Concert (Euro 60.00)
>>>>> Old Vienna Schnapps Museum (Euro 6.00)
Your choice in Prague
>>>>> Lunchtime Cruise (Euro 24.00)
Your choice in Berlin
>>>>> Berlin Historical Walking Tour (Euro 9.00)
>>>>> Berlin Dinner & Nightlife Tour (Euro 24.00)
Your choice in Amsterdam
>>>>> Volendam Restaurant (Euro 31.00)
>>>>> Canal Cruise (Euro 27.50)