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Wi-Spy vs. Wi-Spy 2.4x for home use?

Unfortunately I didn't find the Wi-Spy until after its price was doubled. At the current price it is a bit difficult to justify for 'amateur home use'. Basically I have a mixed signal environment consisting of single-frequency and spread-spectrum wireless phones, WiFi b, g, n nodes, and the usual noise sources such as a microwave oven, etc.