Any opinions on the Nikon P7 compared to the Vortex?
P7 is not bad optically but build quality is horrible. Everything is plastic and glue apart from the glass.
Vortex DB has much better build quality.
The problem is that in your price range a 60€ porro like an Opticron Adventurer T WP or Celestron Ultima (not the vintage ones) will be just as good as a 200€ roof prism model. To get a roof prism bino with decent build quality and optical quality, you'd have to at least go to the price region of 400 to 1,000€. And for anything noticeably better, be prepared to spend 1,500 to 2,000 (which will get you a Zeiss Victory SF).
I'm quite happy with my Fujinon HC 8x42 which I got for slightly above 500 but usually can be found for around 600 to 700.
Probably one of the most affordable Made in Japan binoculars. Design is also cool. Chromatic abberation is very low, it's bright and sharp and build quality is excellent.
Some other good bang for the buck brands, largely resellers of China made binoculars and some Japanese models are Kite Optics and DDoptics. Also GPO.
But for example my Chinese made Kite Cervus HD 8x56 is not as good optically as the Fujinon even though I paid about the same.
Another good and affordable option are the older Fujinon models that were made by Kenko in their factory in the Philippines. They are sharp and have little CA but they only have silver coatings on the prisms so are not quite as bright as the newest models with dielectric coatings.
A Fujinon KF, similar to some Sightron models also made by Kenko would be a good affordable bino. And I like the design.