So great a salvation

This has sprung from me reading Hebrews this morning- I haven't looked at the Greek nor checked any commentaries...just wanted to give a disclaimer.

Hebrews 2:1-4  
The writer warns against drifting from the faith and, it seems to me, gives at least two motives for not doing so.

The first is: things will go very bad if we do.  If, under the OT period, departing from God's revelation was punished, just think how things will work out now if you abandon the gospel.   Straight forward, and perhaps a common way of speaking to congregations about the dangers of drifting from Jesus.

But this idea works because it is lesser-to-greater (in one sense): if that's what happened before then how shall we escape with so great a salvation as has been revealed in Christ?  Which means, it seems to me, that the other way we help prevent drift is:

Secondly, by showing the greatness of salvation.  He wants us to concentrate on the details of this salvation (v1) which is great (v3).  We warn of the dangers of drift BUT we also make it harder to permit drift by magnifying the greatness of salvation - it's wonder, splendour, mind-boggling dimensions and costs, and the Man at the centre of it.

We try to prevent drift by telling people not to let go, don't orbit too far from the Star. And by increasing the gravitational pull of that star, so that its sheer attraction makes it a very hard thing to leave behind.

Dyafink?