I think it's good that the bots are gone, but it's only temporary in my opinion. Just until they figure out a way to adjust to the new system.
It seems the trend now is to really go for max level cards for your league. Thankfully the rental prices have dropped to somewhat decent levels with the bots exit, but I don't know if it'll last. This lower prices does allow people to pour more DEC into renting a full max leveled deck which does pay off quite nicely.
I fear it could all go really bad real quickly if prices shoot up uncontrollably and the game becomes too top heavy. Whales are good for the game, but as in any real world economy, the wealth and success of the whole system is determined by the size of the "middle-class".