re: Help me decide on a great Zero-turn mower.

You can find a used Bad Boy ZT Elite in like new condition for around 4000-4500. Agree with above poster, Bad Boy seems like a great value for the price. Deck thickness, engine options, serviceable hydrogear transaxles, etc - obviously depending on model. It’s been a minute since I’ve researched, but Bad Boy stood out at the time as long as you have a dealer/service nearby.