I will arrive this summer at the Gare du Nord and am staying at a hotel in the 6th near Odeon Metro. The hotel can arrange for taxi pickup at a cost of 110 Euros (there are 5 of us). Can I get a taxi for less by catching my own taxi at the train station, or possibly by booking with a taxi company directly? This seems pretty high. I would take the RER but with bags and kids a taxi seems less stressful.