Good points on Berry.
Question is would you prefer Rayner + Berry or Heeney and a mid 200k rookie (not JHF/Daicos as they are first pick) - maybe Ward/Stephens/Eramus and 20-40k cash.
My preference is Heeney and a rook.
This is why I don't like X vs Y type scenarios.
Putting Rayner, who I think is a poor pick at this point in time, in to diminish Berry is a very flawed ideology. Especially when you go with a 650k spend vs a 550k spend of which 150k of that is just to throw in a weak option.
Berry needs to be assessed entirely on his own, throwing in extra pieces just diverts the focus.
I'm not 100% on picking Berry, he has to tick the perfect preseason box for mine but he's got the potential to be among the very best cash cows available. If he's going to make me 100k more than an alternative pick, then he's worth picking and I'll find the cash elsewhere to do it. At this point he's in my draft though as him going out is likely to free up a lot of cash if he doesn't look good and that's always an easier move!
I'm totally open to a very low premium count in the mids if the rookies support it, at the end of the day it's the easiest position to upgrade as there are way more options available and with the super premiums only needing a poor game to drop 50-100k early in the season they're very targetable, especially with the extra trades.
The weakness in an extreme rookie balance anywhere is the vulnerability if a couple go missing early, be it injury or otherwise, and all of a sudden it's hard to fix. I will say though that one thing the DPP changes to is massively cover for this as lots of rookies will get DPP and it becomes a lot easier to cover absences for a week or two. The other hidden cost is you do end up overloaded in other positions somewhat which can harm the flexibility of upgrade targets there and can have a big opportunity cost if there is a big breakout premium or two that you don't have and no where to slot them in.