makes partkasko / fullkasko even sense here ?!

Good evening, dear community! I already opened the one or other thread with my questions and I am afraid to you now yesterday my appearance passed, without complaint! Now it means to buy machine. I also found for the entrance one, two nice offers in the area. e.g. a Kawasaki GPZ 500. Chain geare new made TÜV until 06/2016 good condition 50k kilometers for 700,00€ Now I have just looked what the insurance says. My question now… does it make sense at all with this price and age of the Maschiene (1997) to take out a part- let alone the comprehensive insurance ? This then applies almost anyway only for theft or ? Severe weather / hail damage will not exist there garage … wild accident …. probably many complicity. to put oneself in the obligation of proof. What do you mean ? Maybe I also got somewhere a “thinking error” …. or something not considered ?! Thank you already once!