Motorcycles, like cars, are getting better and better in quality as time goes on.
Unfortunately, it is the rare case in which a person saves money buy using a bike for regular transportation. Yes, fuel costs are lower, in general, but the cost per mile to operate most bikes renders that savings moot. The way to beat the system is to get a good used bike, at a good price, that requires little maitenance and is simple enough to work on yourself. Most new bikes devalue plenty as soon as they are ridden away from the showroom, and shop costs are pushing $100/hour. A tire change on my bagger (the GeezerGlide) at the shop costs about $500, and is required every 10K miles. Synth oil is about $10/quart; the dealer recommends it be changed every 2500 miles. Some people who buy bikes to save money are surprised to find it usually doesn't work out that way. The only real reason to use a bike, (in most cases, in the U. S.)considering the expense and the additional risk, is because you love it.