[quote name='EarthBoundX5']...so guwange reminded me, but what are everyone's thoughts on Triggerheart Exelica ever going DotW? I doubt it will ever hit it, but I am stuck between finally getting it and letting the spending count towards the promo, or keep holding out for it to go on sale.[/QUOTE]
The title is way too niche to be greatest hits and it's too old to draw much attention during a sale promotion. The game seems to be more or less forgotten by the XBLA promotional team at this point.It's a decent shooter with a unique mechanic. IMHO it's worth the $10.
As eastx said, Ikaruga went on sale at one point, but I think that's sort of the flagship shmup for XBLA. Maybe 1942 went on sale at one point. Shmups seem to rarely go on sale. I think you'll be waiting for a while for it to see a permanent price drop, but it's anyone's guess.