Hi Shanta! On average couples spend about $1,500 on a wedding DJ, so that cost sounds right! You can check out more information about DJ pricing using WeddingWire's cost guide, which gives you tons of cost details:
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It does still seem a little pricey to me too, but I guess it depends on what packages they offer and if they are able to customize those packages. I checked the wedding DJ cost guide and it actually did show that the average was $1800 but I guess it depends on exactly what you for in a DJ.