I'll chime in and say that my budget setup works awesome! I have a Harbor Freight electric unit (1750psi) that I modded slightly with a Ryobi wand so it would connect to the foam cannon I got on amazon. The pressure washer was $74, the Ryobi wand was $11, and the foam cannon was $21 and came with 5 different angled nozzles. For just a shade over $100 I have a nice setup that does exactly what I need and makes good thick foam without using a ton of soap.