Well ’52,
If you’re working with a reputable casino, you’re doing great, in the long run.
Once the customer download the software on their machine you’ve already won. Over time download become installs, which become guests and some guests will eventually convert. I still get an occasional first time deposit at Party Poker from an ad campaign that ended years ago.
So i’d definitely take the “Glass Half Full” outlook, since i think you’ll be rewarded with money down the road.