I need to plan my audio/video expenditures a little more carfully this year, so, what do folks think the v4-to-v6 upgrade will look like, and cost? I came into v4 from a G68, and other than adding the IA45 board, have not done major upgrades. What were the complexities and cost of past upgrades?

I suppose I can see a few possibilites:

1. On the lower cost end, a simple swap in of the new IE44 digital input board for somewhere in the $2-2.5K range
2. Upgrade of the core from v4 to v6 (including OE14, IE44 and IA04), but retaining the current optional cards like OAo3, OA13, etc., for somewhere in the $5-7K range.
3. Upgrade of the core plus new optional cards, +$10K.

Thoughts?

My Kit: 861v8+ID41, 800v4, UHD722, MD600, MS600, MS200, Oppo BDP-203, Genesis 201, Genesis 350 SE, Genesis S4-8 Sub, BG 520i, VTL MB450 II, Krell Showcase 7, Genesis 928 Subs, Danley DTS10 sub, SVS Ultra 16 subs.