Fun With Numbers: Amazon Rank Progression for US Releases (March 11)

Now that a week has elapsed since the 9 releases from 5 March 11 titles (Accel World, Digimon, Ikkitousen s4, Psycho-Pass, Sakurasou) have been released, it’s time to dump the data plots of their daily performance.

As before, here’s the rankings up to this week in Aria the Natural part 2, featuring one total copy sold and the majority of days spent ranked 120,000th or higher:

Aria-wk2

Chart is date, rank, # in stock

1 sale per day does seem to boost a series up into the 70,000th-90,000th range, perhaps for a relatively brief period. It would be kind of nice if I were able to code and could track these hourly, but that’s way beyond my ability level. At any rate, the observation made last week that 120,000th or worse means zero sales seems to hold up.

Plots (and some commentary) are posted after the jump.

AW_2_DVDAW_2_BDDigimon_v6Ikki_4PP_1_REPP_1_LEPP_2_RESakuSou_2_DVDSakuSou_2_BD

A few points of note:

1. Despite relatively similar myanimelist popularity totals (86th and 110th, respectively) and similar releases by Sentai Filmworks, Accel World and Sakurasou put up fairly disparate performances. Two potential explanations for this. First, myanimelist popularity may be indicative, but it’s not 1-1 correlated with the total size of a give fanbase, and this could be taken as a point against it. Second, Accel World has a dub, Sakurasou does not. That may have been a factor that informed more than a few decisions on whether to buy (an alternate audio track is a fairly significant extra).

2. Also notable; the BD releases of both Sentai series ranked consistently higher than the DVD releases, but neither DVD release was negligible; both spent multiple days ranked 20,000th or better.

3. Psycho-Pass did notably better than Robotics Notes’ part 1 did in February, despite a lesser discount (it cost ~$30 per set to RN’s $20). That’s impressive, and it corroborates well with Psycho-Pass’ top-100 mal popularity rank.

4. Ikkitousen’s performance was somewhat of a surprise, but it does come from a franchise whose performance is top-400 on myanimelist. It’s possible sequels get their popularity underestimated; relatively harder-core fans more dedicated and likely to spend money are the ones watching seasons 3 and above.

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