I myself considered an arcade one of the few business ventures I'd pursue if I ever had the chance. But yeah, you can't operate a business just because you like it. Sadly, even doing my best to acquire the right machines and location, I doubt it'd make a profit because of lack of interest by the general public.
I've loved to play Wangan Midnight Maximum Tune 3 in the arcade at the mall for the past 4 years now. I recently found out that the manufacturer stopped making cards for it, so now I can only play out what cards I have left before it becomes rather pointless, the machines are in pretty bad shape now too.
I loved Initial D as well when I was younger, but I haven't seen a machine for that in 5 years, even then it had no cards.
Dance Dance Revolution is fun too, but the only 2 in my city both Super Nova, which isn't the godly original DDR.
Another arcade closed down in the past year, leaving me without Virtual-On and another Wangan machine, and a few other games that were atleast playable.
I mostly blame the owners for not looking after their business and failing to buy machines that are loved, rather than super expensive($10,000+) shitty games like BATMAN, RAMBO, TERMINATOR SALVATION... The list goes on, like they never bothered asking the customers, or even paying attention to what's played.
The death of the North American video arcade is a Shakespearean tragedy, like old friends humiliated and destroyed before the final act.