This is a really good price for this chip for people with Amazon Prime and free shipping, especially given that the Ryzen 5 3400G is still based on the same architecture (not Zen 2).
If you're putting together a gaming box under $400, HTPC or anything else that requires some graphics performance, this is a good starting point.
Good purchase if you're looking for a decent APU. However, you're just looking for a CPU the two more cores and updated microcode on the memory controller of the R5 2600 for $175 is too close in price to pass up.