jonb: It looks like a great phone and I may get one myself, but for comparison I bought a Lumia 520 for $122, and a Huawei 300 for $60 in the boxing day sales. The Huawei does the job as an entry level phone for most people, and the Moto G does a great job as a mid range phone.
You're comparing sale prices to RRP though, which isn't really a fair comparison. Lumia 520 RRP is $199; for what it's worth the Huawei Ascend G300 RRP was $299 on release in 2012. The Y320 is still available at major retailers at $149, but it's truly low-low end - I'd argue that the specs are so low that it renders it useless as a smartphone.