Choosing regular over Pro would be silly considering for about 30% more money you get more than 200% power.
it's my understanding that for $300 every single ps4 slim comes with a bundled game (for my region, it's UC 4)
pro, on the other hand, does not. this is based on numerous threads on SlickDeals and CheapAssGamer
given this info, it starts to make more sense to get a slim
seems like slim has way more offers/deals going around given that it is supposed to replace the OG ps4. again, I paid $239.99 for my UC4 ps4 slim bundle
i'll take a UC4 ps4 slim bundle for $239.99 over a ps pro for $400 any day