The effect on stores is substantial, as well as the price gouging that's passed down the consumer. Not to mention how lesser known bands and labels who are trying to press their music all get delayed because every major pressing plant is trying to fulfil a limited edition 10,000 copy pressing of some Huey Lewis and the News album that's been available in dollar bins nationwide for years so it can be sold for $40. No thanks.
Luckily the stores I prefer to patronize see the gimmick for what it is and choose not to participate in RSD, so it would even matter if I chose to go record shopping that day anyway.
if not... who cares 
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