[satire]
Top 10 reasons why there should be obvious, in-your-face proof of massive technological advancement:
10: Everyone "just knows" techonology advances, and 200 years means big advancements, period. Look at all the inventions from 0 BCE to 200 BCE!
9: Because it's inconceivable that a fantasy setting in a nonexistent world would be anything but "just like Earth," except for maybe the beast races, magic, Daedra...
8: Progress is unstoppable...thus Skyrim should be covered in subdivisions, condeminiums, all waterfronts covered in tourist hotels and timeshares, etc.
7: Gotta keep up the economy to keep taxes flowing into the nobles' coffers, since they're so big on funding inventions and all.
6: Can't have a fantasy world getting stagnant, look at how many times LotR has been updated and modernized.
5: Gotta keep up with all those other games like Fable
4: Possible product tie-ins and merchandising. "Limited time only, get the same sunglasses preferred by the people of Windhelm!"
3: For better immersion!!!one!1!!
2: To replace some of the things "streamlined" out
And the number one reason to show technological advancement over time is:
1: Because the Dwemer could have invented it all!
[/satire]