Have you ever compared the 2? I haven’t but have compared IMX against Uncompressed 8 and 10bit and couldn’t see a difference on the scope or to the naked eye on Broadcast Monitors.
Digibeta is good but is an older tech than IMX. IMX is MPeg 2, better formulated than Digibeta which is an older technology that uses DCT the same formula for DV but higher bandwidth. Head to head 8bit Uncompressed vs 8bit IMX we could not tell the difference from the naked eye or even on the scope. The great thing about IMX is that you can edit natively without having to uncompress and recompress again and save a bunch of space on our hard drives.
Also I’ve heard that Digibeta Decks require a lot of maintenance, we have over 3000 hours on our Deck and have had no problems with very little dropouts. Sony is still selling the Digibeta Decks but if you notice they aren’t marketing them anymore. I know people swear by 10bit but who broadcasts in 10bit? What DVD player uses 10bit? What internet codec is in 10bit?