Should I register 50 domain names, and optimized them for a keyword with 1000 search a month , or it will be more better to buy 1 domain name and optimize it for a 50 000 searches / month keyword ?!
I say 50 websites - only on the merit that its not the best practice to have 'all of your eggs in one basket'. but thats just me
it all depends on how many you can handle at once. I mean, just optimising 50 sites is one thing, but doing all the content of 50+ sites (especially e-commerce sites) can be... problematic.
just 10 is enough.. then buy cheap but high PR links.. Instead of buying/registering another 40 domains.. Its difficult to manage all those 50 domains...