The problem is, you are comparing internet bikes to a bicycle only sold by brick and mortar dealers with a ton of customer support, lifetime warranties, follow up service, etc... Of course they are cheaper, they come in a box, there is no sales person, no mechanic, there is no boss that volunteers and donates massively to local bicycling infrastructure. So, yes, save that two hundred bucks to support some faceless entity who doesn't give a crap about bicycles at all.
But if you aren't equipped to true wheels, adjust headsets, and properly assemble it, don't be shocked that your four hundred dollar bike is looking more and more like a $550 dollar bike, yet you still get none of the follow up perks of buying from a local business.
