Why would you call colocation "building your own data center"? You could call it "colocation" or "renting space in a data center". What are you building? You're racking. Can you say what you mean?
replies(11):
For people who have taken empty lots and constructed new data centers (ie, the whole building) on them from scratch, the phrase "building a datacenter" involves a nonzero amount of concrete.
OP seems to have built out a data hall - which is still a cool thing in its own right! - but for someone like me who's interested in "baking an apple pie from scratch", the mismatch between the title and the content was slightly disappointing.
I say this not merely to be a pompous smartass but also because it illustrates and echoes the very same problem the top-level comment embodies, viz. that some folks struggle with vernacular, nonliteral, imprecise, and nonlinear language constructs. Yet grasping this thistle to glark one's grok remains parcel-and-part of comprehension and complaining about it won't remeaningify the barb'd disapprehensible.
Your disappointment, nevertheless, seems reasonable, because the outcome was, after all, a bait-and-route.