[Klathmon]

(complete speculation here with nothing to back it up).

That's what i'd bet they are going for. Every launch (even GTO launches) will be RTLS. Plenty of fuel on board to avoid the suicide-burns that SpaceX is doing, lots left over to give some wiggle room in case corrections are needed.

If they can maintain the same level of reusability that New Shepard is expected/hoped to have (basically rivaling that of airplanes), then the additional cost of the rocket itself can be amortized over many many launches.

[greglindahl]

SpaceX does suicide burns because of engine throttling issues; that's a separate issue from margin, and a separate issue from landing on a barge vs landing on land. It remains to be seen which of these are dangerous enough that you don't want to do them with a rocket you want to land many times.