When to buy expert:
https://www.thespruce.com/best-time-to-buy-a-lawn-mower-for-maximum-savings-1387757What to buy expert:
Golf buddy retired heavy equip pro says buy the very best = Deere @ Deere place so they will fix it, which in the long run saves time/money vs. the big box disposables since they fix nothing anymore.
Build your own
https://configure.deere.com/cbyo/?gclid=Cj0KCQiA14WdBhD8ARIsANao07j5SxGTBZUgmMrkoonhijc1RxlSf9tFpv9ofMM8hmxUTsxR3shwfrcaAhAFEALw_wcB&gclsrc=aw.ds#/en_us/products/landscaping_&_grounds_care/mowers/zero-turn_mowers/z300_series_zero-turn_mowersPersonal share:
We still employ a 2008 Craftsman non-zero that was on sale from a Sears that also repaired them and stocked all parts. 42" 17hp but only 1/2ac Aggieland
Quality product but local Sears now out of biz but parts available on internet.
but
Neighbor has to mow an entire acre, few trees/obstacles and will never look back after getting a zero-turn.
My one big wish next purchase would be getting No-Flat tires, even over the zero-turn feature.
Short-hand answers here ... long-hand help here ....
http://pages.suddenlink.net/tgivaughn/