Different machines for different tasks. A Cub Cadet is great around a smaller yard and can pull most of what 99% of people will need. That being said, I grew up on a small old farm with several of both Cubs and Lo-Boys (ol' man had thing for them, I guess). There are things they can do that a Cub Cadet can't (or rather you SHOULDN'T do with them

) but you have to need that ability for them to be worthwhile. We had 5 acres around the house of both nice green grass and rough fields that had brush that needed cut. I love my CC's, there isn't much I'd trade my Super for, but if I had to mow now what I did back then on a regular basis, I'd have something bigger along the lines of Cub or Lo-Boy size. Not as maneuverable, more maintenance, more to go wrong, etc but some of the stuff we cut I wouldn't want to put under my CC. We had a Woods belly mount brush cutter on a Cub to get over stuff and knock the heavy work down then a 3 blade finish mower on the Lo-Boy for a nicer finish around the house and such (we also had another Cub with a belly mount blade, another Cub with a front mount blade, another restored show Cub, etc

). They could also pull (pull safier) the ol' grain wagon we had around, the ol' horse drawn but converted to hitch style hay rake we had, move around the rusty ol' 12' disc, etc. Just a heavier built machine for tasks requiring more grunt.
Get what you need and be happy with it. I'd like to have a Cub or Lo-Boy (or any larger machine) where I'm at now but it'd be excessive overkill for what I regularly do. But hey, to each his own. If I could easily afford one machine, I'd have a nice New Holland subcompact with a belly finish mower, loader, and a few other small attachments (and a cab, then I could use it in the winter!). I could still fit it in my garage and it'd be small enough to get around what I need to but big enough to do some of the heavier work I'd like to do but I'm getting off topic now