Yeah, I think more would agree that scalping is much worse than flipping. Flipping rips off stores (while bad in a sense, but I find it hard to really care about large corporations. Unless of course everyone suffers with higher prices, weaker sales, worse return policies, etc...) while scalping hurts fans. Also like you implied, flipping usually involves things that are easily attainable at or around MSRP.
Retailers also rips off customers if you think like that. Stores get their products from distributors at a much lower rate and sell it back to you at an inflated price. Which isn't bad, you don't have the resources to buy from a distributor nor the money to do so. And I find it hard to believe flippers are ripping off retailers when they buy stock that isn't moving in a certain store than sell it less than the national store price online. If that store wanted to they could sell it online and yet don't. Why else would people buy items from 3rd parties on Amazon / eBay unless they were paying less than retail for items.
People who flip can (and do) get their products from distributors, stores, wholesale, etc. Flipping do (contrary to what I just said) rip off stores by creating more competition. Most people who flip aren't buying out a store of a newly released product (despite retailers making it seem so). They are clearing out old inventory that is clearanced thus helping the store get rid of excess stock.
But honestly, who cares. This is a capitalist society and you have all the resources at hand to get something at whatever price you feel comfortable with paying. Do as flippers and research prices, sales strategies, coupon, get in on rebates, etc to get something you want. Heck, you already do that by being on CAG looking for cheaper games. Just take the extra step with every other product you buy. If you don't have the time to do so or the expertise, you really shouldn't complain about missing out on something.