There are plenty of other really nice full featured and inexpensive Flat File CMS and CMS options now days for people to chose from as well:
- Pulse CMS
- October CMS
- Grav CMS
- Respond CMS
- SiteCake CMS
- GetSimple CMS
- Craft CMS
- Typesetter CMS
- Statamic CMS
- DropKick CMS
- Kirby CMS
- Perch CMS
- Surreal CMS
- Cushy CMS
- Jekyll
- etc.,
Some of which are:
- very polished
- easy to implement
- rapidly and actively developed
- offer many add-ons
- user extendable
- brand-able
- inexpensive
- etc.,
Of course you can always roll your own as well. I think I believe seeing @Terry44 stating he has his own that he uses for his sites. I’m sure others do as well.