Gone are the days of expensive web hosting. There was a moment, only a couple decades back, when hosting wasn't as economical as it currently is. Lets see.Hosting is all about storage onto a tough disk (which resides on the web server) and bandwidth to your own data. Till a couple of decades back, hard disk wasn't as big as it's now. Disk drives come in a 400 GB. The tiniest ones for home computer use come in over 100 GB sizes. Compare that using a drive. Visit www.alkanyx.com/ if you are interested in php scripts for login and registration.
Some of them 400 GB to 500 GB range hard disk drives in a normal Linux powered web server using 4 Intel Xeon Central Processing Units provides more than sufficient processing power and storage capability to host tens of thousands of sites on a single server, each one of these operating thankfully.
Throw in open source (free) Apache PHP MySQL mix and you've got a recipe for hosting an actual working lively site at very low prices. What was once a superior mix is currently quite standard and quite cheap and very affordable. It's not unusual to find hosting programs as cheap as only 99 cents per month, which come complete with features such as PHP and MySQL and sufficient storage.
There is, hence, no reason for anybody who wishes to host anything from a personal homepage or a home business / small business needing a lively site for their internet business, to go just for simple HTML sites. No. That's long gone.
Shared web hosting has become quite affordable for each type of usage and program. As processing and storage technology improvements, hosting will soon be accessible with much superior capacities and stronger capabilities. It makes sense to utilize the power of PHP and MySQL if it's well within everybody's reach.