You should definitely try them but you also have to try different bakeries, because the quality varies from awful to delicious. All butchers offer it, some of them even sell rolls with hot Leberk se. You can find it in the supermarkets and it can be combined with every kind of sausages, but especially with Wei w rste und Leberk se. Bavarian S lze tastes different than the aspic you know. Butchers often offer it .Simply go and try.
Some butchers offer it.
Try it in one of the inns around Bayreuth. Certainly there are a lot more specialities which you will get to know sooner or later during your stay in Bayreuth. Usually every town has its own Volksfest, which lasts up to two weeks.