One more recommendation for Festool - not just the plunge saw, but the OF1400 router. I haven’t used the Bosch (which by all accounts is excellent too), but I found an open-box OF1400 on eBay at a great price, and I haven’t looked back. It’s an excellent tool, and as long as it’s connected to a shop vac (not the Festool mortgage-requiring type) there is practically no dust, even when working on MDF.
On the ¼ vs. ½″ collet, I would go diametrically (!) opposite - unless you are planning to use the router only as a trim router. You can fit a ¼″ collet on a ½″ capable router body, but you can’t do the reverse, and any shaping/moulding capability is severely restricted if you only have ¼″ bits.