I must admit that I spent a large part of my youth playing coin op's, mainly through the 80's and early 90's.

There was always something special about going down the arcades as a kid and (although i've owned a cab for many years now) back then owning an coin op machine was just a dream.
As has been said, the arcade conversions we had (at least until the Megadrive came out) were often poor relatives to the arcade originals. Back then, if you wanted high end gaming then the arcades were the place to be!
Anyway, here are a list of the seminal arcade titles of my youth...
Star Wars
[youtube]ayw6LbAWIk4[/youtube]
Gauntlet
[youtube]7mMJio2MO6w[/youtube]
Double Dragon
[youtube]S0-2xhQAO9k[/youtube]
Outrun
[youtube]RJvRbfUioTs[/youtube]
Afterburner 2
[youtube]PkkQNDvKEdg[/youtube]
R-Type
[youtube]GFxuI7cBFhQ[/youtube]
Super Hang On
[youtube]yHGt4Zy-l6c[/youtube]
Crackdown
[youtube]PoaPd9gph9w[/youtube]
Operation Wolf
[youtube]yTiQ_jHinN8[/youtube]
Golden Axe
[youtube]0gOKT5KHsuI[/youtube]
StreetFighter 2
[youtube]hDPYRCMgEJ0[/youtube]
Wec Le Mans
[youtube]Q0oWddbzW0w[/youtube]
Daytona USA
[youtube]0EkAVmBVmVE[/youtube]
Sega Rally
[youtube]lGBF7tJhHMU[/youtube]
Ferrari 355
[youtube]lfuxWdQhR_4[/youtube]
There's plenty of other games which got my cash (TMNT, Mortal Kombat, Rampage, Chase HQ, Thunderblade, Power Drift, Galaxy Force, Salamander, Super Monaco GP, Monaco GP, Super Sprint, Firefox etc. etc.) but the above were the ones that most jumped to mind. Sure i've missed loads though

.