Out of curiosity, what is the general margin on the list price of a given narrowbody?

There's nothing about MH370 that indicates it was a simple suicide:

Yes, those aircraft have something going for them - powered thrust.

Then there's likely a gaping hole, or more likely, entire open sections from which all matter of buoyant ejecta can travel through once submerged.

And, pray tell me, what do you imagine an actual glider to be?

In water landings, US1549 was by far the exception (there's a reason they called it the Miracle on the Hudson) not the rule. The Hudson river is nothing like the open ocean, particularly in a search arc that intersects the Roaring Forties, noted for their consistent violent turbulence.

Well, in a way, we're in agreement. That's why I think it's so troubling about the complete lack of any MH370 flotsam whatsoever, over such a long time period and such a wide search corridor. Nothing.

Sure, but Inmarsat data isn't the only data being used. As previously mentioned, multiple factors have been figured into the currently plausible search box in the Indian Ocean. Remember this isn't a pinpoint location, it's tens of thousands of square miles of ballpark.

See, there's the problem with MH370.

For example, the Inmarsat data have MH370 travelling at 50 mph WHILE STILL AT THE GATE

Oh, no. That's not the direction I was going.

And by inefficient glider, I think you mean a nearly half-million-pounds of thin metal with zero thrust, minimal flight controls (if any), that needs to maintain a minimum of ~200MPH (to prevent a catastrophic stall) and is losing altitude (under absolutely optimal conditions/glide path) at 800 FPM. That vehicle…

Beyond reason? No, I agree. But I think it becomes increasingly troubling with each month that goes by and not even a single speck of MH370 flotsam has been found. Even with the tens of thousands of miles that have been trawled, flown over, and scanned. Nothing whatsoever.

No. They knew the rough course from the flight plan but it flew well beyond Brazilian radar coverage, into the Atlantic for an unknown length of time.

Indeed, though given how far the search area has been narrowed, and the intensity with which it has been trawled for the past 7 months I still find it puzzling that not a single iota of debris has been recovered. By way of comparison, AF447 search teams recovered 50 bodies and 640 pieces of debris (some very…

Ah, the odor of tin foil headwear always brings out the trash. Looks like it brought the bottom of the can this time.

They aren't searching the entire Indian Ocean, Sherlock. Learn to read.

Except this statement will have no measurable effect on Malaysian Airways business whatsoever. Nor would the Malay government allow MA to go bankrupt. They own it.

The minimum airspeed for a 777 is 195MPH with an unpowered descent 'glide profile' of 800 (vertical) FPM. You don't land in the ocean, you crash into it. Regardless of what those neat little vector diagrams in laminated plastic in the seatback depict.

Still doesn't explain the complete lack of any debris in 7 months of intensive searching.