There will ALWAYS be someone willing to do something or sell something cheaper than you, in any kind of business. I'd rather have half the work for twice the money than do double the work for half the money.

The key is to differentiate yourself and your service away from just being a commodity "box of lights" placed in the back corner of the bar.

What kind of value can you offer? How else can you help drive patrons to the bar?

What other venues can you approach besides a highly competitive "barcade"? What bar would LOVE to add a new attraction to some unused space at the bar and bring in new patrons? (here's a hint: Everyone loves making more money, and there are thousands of bars out there).

Don't get fixated on the one "perfect" location. Work with owners that see value in what you are offering and are appreciative of your effort improving their business.

These are basic business principles. I'd let the dogs take the scraps and work on finding new venues that worked best for me.