There is a way to have your cake and eat it too, so to speak. Regular turret presses have the advantage of being able to switch from die to die quickly, without loosing their settings, but they may not have the precision of alignment of a single stage press. To get around this, I have fitted my Rockchucker (original) with a Hornady Lock-n-Load conversion. It works really slick, allowing me to switch dies quickly, and preserve their settings since they are between the die and the adapter, not the die and the press. I have had a turret press and did not find much advantage in changing dies back and forth for each pistol round. I would still do all of my sizing, then my expanding, and then seat, and then crimp, all in batches.
The place to spend a little extra is on your dies, especially for your accuracy applications. Just remember it is about the quality of what they produce, not the price. In some cases dies that are affordable can be really good, for example using Lee Collet dies in combination with body dies for factory chambers. Neither is expensive, but together they produce very good results. Wilson or Forster seaters are worth looking into.
The other thing that I would stress is that you should invest in good measuring tools. A decent dial caliper (I find no advantage to digital.), a 1" micrometer that reads to .0001, a neck micrometer, the Hornady "headspace gauge" kit, the Hornady seating depth tool, and a concentricity gauge (Sinclair's is a good choice. There are other good ones. I don't like the Hornady design.) These tools will let you have a way to see what you otherwise would not be able to. I would not do without any of them.
Lastly, relating to the Hornady "headspace tool", learning how to set your FL dies is important. Do not follow the manufacturers' instructions.