It's not about changes in the world of accounting, it's about changes in technology. Quicken Essentials for Mac is lacking in features that are included in their offerings for their PC side of the Quicken family. For one, there is no ability to sync with a smart phone. Even though Quicken recently came out with an app that syncs with the recent PC versions of Quicken, they still haven't added this feature in the updates they've provided for Essentials.
The other feature is one that's more of a personal annoyance: Quicken Essentials uses a file format that's specific only to Quicken Essentials and is incompatible with other versions of Quicken. This makes it impossible to have any portability of information if I wanted to keep the data file synced for access on a Windows platform machine.
If Quicken provided a version that offered smart phone syncing, I'd be more than happy to pay for it. Right now, even though it's a year old, Moneydance is more robust and has the ability to sync with both Android and iPhone, and is offered on multiple platforms. The same license key can be used to install the version for Mac, Windows, or Linux, and its retail cost is the same as Quicken Essentials when you use the discount code available on their facebook page when you check out.
I'm not trying to start any fights here or slight any Quicken fans, but if you consider that Quicken 2007 for Mac was released on April 1, 2006, this means that there's been only 2 Quicken products offered for Mac users in 7.5 years. (not counting Lion Compatible Quicken 2007) To me, that's a bit of a slight to Mac users since Quicken releases a PC version every year.