It really depends whether you base your calculations on Bitcoin or USD as a stable medium. I personally base all my calculations on Bitcoin because I don't convert between USD and BTC. If you base your calculations on BTC (i.e. you already had the BTC and have no intentions of exchanging it to USD) you will do better by swapping BTCD, but if you bought BTC just for the ICO then you would've done better in the beginning of the ICO since your base is USD.
Whether you already had BTC or bought it for the ICO doesn't change anything in my calculations above. But of course if you disregard fiat entirely, then it's even a better deal now to buy BTCD than to have bought during the ICO, beginning or end.
However few people don't care about the fiat value of their BTC or BTCD or KMD.
And if you ever spend BTC, then it's real world purchasing power is based on it's value in fiat, so it's certainly relevant.