As I was researching arcade machines in general, I picked up a few bits and bobs in advance of getting the machine itself. There are no shortage of game pcbs out there to buy but given their cost I just wanted to get something that had me up and running and would show off the cab quickly until I ultimately connected a MAME PC.
Therefore I opted for an MVS 161 in 1 cart. Unlike other multigame pcbs, this is an actual cartridge so there is no emulation (as far as I know) with the majority of the games running with 100% accuracy. There are a couple of downsides to this cart though:
All the games are for the NeoGeo MVS system so all come from the one manfacturer
An MVS motherboard is needed to connect to the Jamma harness in which the cartridge slots into
A good few of the 161 games are bootlegs/hacks
Lots of games are from the one series e.g. Metal Slug, Art of Fighting
Like a lot of my stuff I picked up the motherboard and cart from Jamma +. For those that are interested the motherboard is an MVS-1FZS.