What if DVDRW was as cheap as DVDR?

What if DVD±RW disks were as cheap as DVD±R?
Whould there be any point in using ±R?

I do worry about what time can do to properly written DVD±R's.
Are DVD±RW's as much endangered? More? Less?

I need to backup some very importand data (pictures).
I'll do it on both: +r and +rw.
I wonder - which one should last longer?
What do you think?

Thanks,

latet

My strategy is to have multiple media with different technologies, stored in different places.

The media manufacturers can sell DVD+RW media at the current DVD+R 8x prices easily but there has been no such large-scale demand to let them do so.

I don't think DVD+RW can last longer than DVD+R simply because DVD+RW is much more complicated than DVD+R write-once media. RW is for rewritable anyway, not for write-once archival.

My recommendation is to use both external HDD and DVD+RW media, storing the data at once to both. 2.5-inch hard disk drives are not that expensive these days and even Samsung and Seagate now sell them at decent prices.