He was forfeiting his right to the land, and Ruth and ultimately to be in the family line of Christ.
He was making a business decision, not a spiritual decision.
There will be many times in a believer’s life or even a church’s life where we need to make a spiritual decision that might sometimes conflict with a rational business-type decision.
When God asks us to tithe, every business model would tell you that is an unnecessary expense, don’t do it.
Why would missionaries leave the comfort of their home here to go to a 3rd world country?
One author says: God does not always call us to the normal or logical.
The point is, there will usually be a cost to following God and we need to be ready to pay it
This redeemer counted the cost and turned it down. After this, he is never mentioned again in scripture.
Boaz was willing to endure the cost because he love Ruth.
Christ was willing to endure the cross because he loved us.