If you can put up with subtitles, it's probably worth keeping an eye out for the Japanese laserdisc on eBay. Looks like they don't fetch a particularly high price (HERE, for example).
Another interesting fact I noticed: the Region 1 DVD release only had a Dolby Digital 2.0 audio track. The Region 2 disc has DTS 5.1 and Dolby Digital 5.1