My husband and I will be travelling for 3 weeks in Eastern and Central Europe. We'll be travelling through about 8 countries via rental car. The main reason I'd like a phone is for the GPS and for a couple of audio tours. Since we're going through so many countries and our cell phone carrier (Sprint) does not seem to have reasonably-priced international travelling options, I'm questioning whether we should bring our phone. We have no dependents we are leaving behind at home; so staying in touch with loved ones at home via e-mail/computer/tablet will be sufficient.
Would it be better ditch the cell phone and bring other items for our technology needs (i.e. a tablet with a Navigation App and an iPod for audio tours)? Or is there some reason why we should bring a cell phone that we're not thinking of?