Ketamine: Antidepressant wonder drug

There is a new press release making the rounds today from the National Institute of Mental Health about ketamine, and how it is the key to creating a whole new class of antidepressants that work in hours to relieve depression. This release, and all news reports which have followed, are quick to point out that ketamine itself has unwanted side-effects, such as hallucinations at higher doses, that would rule out its use in treatment, so alternative drugs that target the same receptors are being explored. But doesn't this sound like a cop-out to you? Many OTC and prescription drugs also become dissociative hallucinogens at high enough doses (alcohol, DXM, diphenhydramine, valium, morphine, etc.), and ketamine is in wide recreational use already as -- what else? -- an anti-depressant (because it makes you feel good). It seems to me that research science has finally caught up with the miracle that is special K, but they have, once again, totally missed the point.