Aego 3 do look good, but £200 is quite a lot, especially if they don't improve on the cheaper Aego M sound quality. If they don't sound better, you'd be paying an extra £70 for different external aesthetics, built in DAC and Bluetooth.
On the other hand, for that money they should be well made; an area where the SP2500 is lacking when it comes to internal quality. I've seen a few complaints about the cheap PCBs and power supply. Good speakers yes, but you can see how they achieved those specs, by cutting costs on components that are vital. What's the point of having speaker capable of good sound, if the power supply breaks?
Personally, I'd take the Aego M over the SP2500 every time.
Edit: Edifier C2XD are also worth considering. Another member bought those after his SP2500 broke, and for £100, he was impressed with them.