It's been quite a while since they both dropped, especially Accel, So I was wondering if there are any statistics out on how well the W returns movies did.
Accel and Eternal were direct to DVD releases. Here are various DVD numbers I've managed to find. Some are from 2ch, some are from the sources listed bellow. W Returns Eternal is listed there too:
The second number indicates the number of weeks that had passed.
DVD NUMBERS
*4,017 *1 Kamen Rider Hibiki Vol.3
16,893 ** Kamen Rider Hibiki (Movie)
*7,262 *2 Kamen Rider Kabuto (Movie - Director's Cut)
*4,363 *2 Kamen Rider Kabuto Vol.10
31,446 *7 Kamen Rider Den-O Imajin Great Meeting! Climax!!~
23,627 ** Kamen Rider Den-O (Movie 1) - Collector's Pack
35,000 *5 Kamen Rider Den-O & Kiva Climax Deka - Collector's Pack
19,966 *2 Kamen Rider Den-O Vol.12
*8,607 *1 Goodbye Kamen Rider Den-O Special Event
*2,749 *2 Kamen Rider Kiva Volume 12
*1,576 *1 Making of Kamen Rider Decade (movie)
*6,822 *2 Kamen Rider Decade VOL.1
*8,071 ** Kamen Rider Decade VOL.2
*6,289 *2 Kamen Rider W VOL.9
*2,621 *1 Chou Den-O Trilogy Collector's Box
*3,548 *2 Chou Den-O Trilogy Collector's Box (Blu-Ray)
*8,819 *1 Kamen Rider W Returns Kamen Rider Eternal
*2,024 *1 Kamen Rider OOO Vol.6
*5,531 *1 Net-Ban OOO Den-O All-Rider Let’s Go Kamen Rider ~Gachi de Sagase! Kimi Dake no Rider 48~
*2,069 *1 Kaizoku Sentai Gokaiger Vol.1
*1,588 *1 Kaizoku Sentai Gokaiger Vol.2
http://www.animenewsnetwork.com/news/2011-07-26/japan-animation-dvd-ranking-july-18-24
http://www.animemaka.com/japans-animation-dvd-ranking-august-1-7.html
2,818 *1 Goseiger Last Epic
3,171 *2 Goseiger Last Epic
http://www.animenewsnetwork.com/news/2011-06-28/japan-animation-dvd-ranking-june-20-26
http://www.animenewsnetwork.com/news/2010-06-22/japan-animation-dvd-ranking-june-14-20