Berrios isn't an ace, and 20-25 million really isn't ace money anymore. It takes 30+ million to get a real ace. He's a solid 2-3 starter on a good team, worth somewhere around 15-18 million, which the Twins can afford. Maybe someone gives him 20 million, but I think that's the max he gets.
The problem is the Twins have nothing in the system for starters that are ready next season, if they think they partially rebuild and contend. If this is a total rebuild, they need to dump everyone they can, including Buxton and take the lumps next season. If there is a season, which is also a factor.
I strongly disagree on your assessment.
Being an ace is a relative term, depending on the talent you've produced.
Including out 2 World Series Wins, these are our aces -
Viola
Radke
Santana
As you may have noticed, I post stuff from The Athletic, which has superior content to most daily newspapers. In one of the articles, they talked about how well Berrios' ERA was for his MLB tenure; one of the top 15 or so IIRC.
He may not be an Ace by your definition, but he is a 2 time All Star, only 27, durable, pitches competitively most outing and has a very good career ERA.
MN ain't a free agent paradise, it's not LA, NYC, Chi or Philly, it's a secondary market (albeit a nice one) and not a free agent destination - numerous recent examples back this up, such as Zach Wheeler.
If we have to over pay, then over pay - JimmyJamz MD is right and Lavelle's an idiot, as obviously a pitcher like Berrios reaps the biggest bounty since they are so few and far between, duh!!
If you read the article I posted regarding the farm help a few post up, you'll see some good arms are on the horizon.
Ober looks like a solid future 3-4 starter and Dobnak got screwed this year, he should have gotten all the starts possible that went to Shoe and they needed to flip roles; they needed to show him they believe in him as a back end rotation guy.
Signing Berrios is the priority for me over Buxton; Buck looks like Rick Fenney. As Bud told Sid,
"You need durability besides ability."