The Yeti is a fair value for price at around 40%-45% off retail. It is an unwieldy beast of a mic that takes up a lot of desk space. Blue mics are also extremely expensive to mount, given that their proprietary mounting bracket costs $50, which is as much or more than the snowball costs most people. And you will definitely want to get that mic off the desk due to the keyboard and other bump related noise it will pick up.
Blue mics are like Dre Beats, Bose headphones and Dyson vacuums. Incredible marketing for a passable product and you pay more for it.
It is also worth noting that a pop filter is only needed if you don't actually know how to work a mic, but talking past rather than in to the mic is a side issue to this particular thread query.
I usually recommend the Samson C01U if people really must have a USB mic. However it is a far better idea to look into a proper XLR-USB interface and buy an XLR mic. Shure SM58, MXL550, AT2020, etc.