adding yast sources instead of installing apt

I found out you could simply add yast sources instead of installing apt. Why install apt when yast works perfectly well?

there a list of yast sources in susewiki:
http://www.susewiki.org/index.php?title=Finding_RPMs#YaST_Sources

add these to isntallation sources. It may take a few minutes for Yast to add the sources. The first time you open add/remove software, yast might also take some time; it has not stalled, it is probably getting information from the yast source about the packages available.

then to add or remove stuff, just use the search tool in yast, et voila!

My only gripe is that yast does not allow you to install more than one package at a time. E.g. i want to install mplayer and xmms. I search for xmms, and can then click and install it. Then i search for mplayer and click and install it.