Product Roadmap question and request for recommendation

What would you do in this situation?

We are currently at PG 8.1 and are in the process of upgrading to
8.3.6. I read on your development roadmap page that 8.4 is slated for
release in Q1 of this year, possibly on the 31st of March:

“The next release of PostgreSQL is planned to be the 8.4 release. A
tentative schedule for this version has a release in the first quarter
of 2009.”

I have also read in the postings that the framework for in-place
upgrades is being added to 8.4, so the actual upgrade to the
forthcoming 8.5 can be done as in-place (without dump/restore), but
there won’t be a way to do an in-place upgrade from any 8.3.x version
directly to 8.5.

Upgrading some of our larger databases is rather painful and is a
several day effort (staging historical data over time so the actual
cutover can realistically be done in a weekend). Right now 8.1 is
working well for us, is extremely stable, and provides all of the
functionality we need to support our applications. Given this, it
sounds to me like it makes sense to wait a bit longer (2nd half of
this year) for a 8.4.x version do to the dump/restore against for the
last time so we can then, in the future, do in-place upgrades from 8.5
onward.

Any comments you can make on this suggestion would be very much
appreciated.

Thank you,

Keaton Adams