I'm looking to be a proud owner of a Rolex, I've got my eyes set on the Explorer 39mm and the Sub nondate. What are the pros and cons of the models mentioned? Which would be more versatile in terms of how good they look with suits and with casual wear? The AD salesperson told me the sub would hold more value... Here comes the noob question... Is that true or was he trying to get rid of it cause it was a bit more pricey and he had so many left as opposed to the explorer? I just didn't understand it cause every store I go there there is at least one sub and hardly ever do i see any explorers. So with the concept of supply and demand, how could the sub would hold more value when there are so many out there being sold new and preowned as opposed to the explorer. I'm not trying to seem vain and buy a watch solely due to popularity, they both look great to me which is why I'm having the hardest time deciding, but i just need to know if theres something between the two in terms of movement quality, durability, time between the need of being serviced, history, or quality of parts used that makes one seem more valuable than the other.