i can see your point.. but you gotta understand that this is AMERICA-- home of capitalism.. if it brings in money and there's demand for it, it will be built.. DO schools are just catering to the supply-demand of medical labor economics.. can you really blame them?
like you said, it "probably wont affect us in our careers," and it'll be decades before anything really happens. i dont think it'll be like law schools, because relatively speaking, its much easier getting into an "easy" law school than it is to get into a med school..
let's face it, getting into med school is a BITCH. the process of LORs from profs and docs, transcripts, getting good grades, MCAT-- the whole thing in and of itself supresses applicant pools so that not EVERYONE with a high gpa applies. as long as new med schools abide by these same standards, it will shy away the general population and there will always be a labor shortage, to some extent.. i'm not worried about it, it wont affect me or any of us in the near future