The "B" would not be what it is today without the Benz. That 3500 platform is far better than any US designed B yet. Of course they have been in Europe for years and are 98% of the motorhomes in Europe. Although with US diesel fuel cost higher than gasoline, they are rated around 18 MPG which when compared to gasoline prices is about 15 MPG, cost wise. The US sells much of US Diesel to Europe, as they pay more for it than the US customers will. Perhaps that will change if and when the US and other countries start using Natural and propane gas for vehicles. The main advantage to a "B" is its size allowing it to be a daily driver and an home. As for long term stays it does not feel as homey as an A or even a C. The fact they presently qualify as a second home and are deductible as is mortgage interest on your primary home, may disappear when deductions are taken away for higher tax revenue in DC. To "B" or not to "B" that is the question?