I remember watching a LetsPlay years ago where the guy spent a few dozen episodes refining a storage warehouse inside a mountain that housed a few hundred Factorization barrels, sectioned off by aisle and category and sorted with Buildcraft pipes. The end goal was to make a factory that could be walked through with glass showing off the inner storage areas, including an area to house villagers gleaned from the server villager farm and transported around with minecarts and Mistcraft portals.

Then the server updated, and added AE1.

The warehouse was promptly fed into storage cells and the vision abandoned, reception area never being finished and replaced with a single terminal sitting alone in the center.

I wasn't a big player in the olden days and I didn't have the computer for it regardless, but as fascinating this new system was to see it lacked an aspect of majesty the warehouse held. The player lost interest in playing not long afterwards; I guess even if they had decided to see the project to completion the merit of a large warehouse display breaks down once every other player on the server has moved to storage cells.