Just my opinion but, I would agree. In this area, the cost of 9mm & 45 acp isn't that bad compared to the cost of reloads with commercial bullets. There would be savings if you load high volumes but it would be minimal for the average shooter. For the occasional shooter, a single stage press will work fine. However, there is a noticeable savings when loading rifle cartridges plus you have more versatility with a greater variety of load. Once you get started with rifle bullets, you may want to try some pistol rounds just for fun.
As for getting started, check here; http://www.marlinforum.com/forum/f22/reloading-keep-simple-538/
If you have more questions, feel free to ask.