X-men, AC/DC, TAF, TSPP, LOTR, RS, EATPM, JP, Taxi, RFM, Tommy, BK2000 and 2 cool "older" games for the old school peeps Xenon and Fathom. Good blend of old and new and classics most which can be found routed and affordable.
Here is the dark horse game that I have known a few people that have done well with it on route - Flintstones.
Knowing a few arcade owners, EMs just don't do well enough to even consider, if you get some really cheap they can be a throw in but won't pull in any money.