Looking at buying a Pixel Watch but need some advice!

I am looking at getting a pixel watch, but was curious to know what peoples opinions are on the Watch 2 compared to the Watch 3. I am not looking at buying new as I don't have the finances to do so. This means that I won't be contemplating the Watch 4.

Is the difference between the Watch 2 and Watch 3 big enough to warrant the extra ~£90, or should I wait to see how much they drop when the Watch 4 is announced?