One other question, what is your planned use? Will you be the only thing you are using to mow your yard? Will it just be a "trim mower" to use where a larger machine/rider won't fit. WIll you be using it to mow multiple yards as a business? These factor in.... I have a Cub Cadet SC 100 Push Mower. They no longer make this exact model, the current one is an SC 100 HW (it has the larger wheels in the back, mine has 4 wheels the same size). I've had this since the start of mowing season 2015. It's my "trim mower" that I only use to trim with, or get in tight spots the tractors or now the ZTR won't fit. It has worked very well, has started with the 1st or 2nd pull every time. I've changed the oil, and sharpened the blade. Noting else has needed to be done with it. I would say it get 10-15 hours a year (it gets used at more than just the house). I'm very happy with it.... and would but a similar model again.
On a side note, I have been happy with all my newer Cub Cadet equipment. Yes, I still have my Quietlines, and they still get used, they aren't going anywhere. But I have this 6 year old Push Mower, a 5 year old CC string trimmer / brush cutter (has the straight, shaft that the attachments can be changed out on them) (similar to the current BC 280) and a CC ULTIMA ZT1 54" ZTR I bought new last year. All 3 have started and worked fine EVERY TIME I wanted to use them. No down time with any of them... so I understand the newer CC stuff isn't built like the old IH stuff, but the stuff from the last few years, at least for me, has served me well and I am very happy with my purchase. But, do I think my 2020 ZTR will still be running in 2060... no I don't.... but I don't expect to "throw them away" anytime soon.....