Argh! Sunburned my phalaenopsis. Should I just toss it?

[astrid]

Can you guys help me weigh out the pros and cons of keeping this plant?

So, I left my phal in a spot where it would get more light because winter here is cloudy 90% of the time. I was gone all weekend and apparently we did actually get some sunshine. It gave my phal a righteous sunburn on the leaf that is about 2 inches across, white in the middle, and just ... ugly. It already has a few other ugly leaves, which twisted around as they grew, and some broken during transport.

However, the flowers are quite a lovely pink color, and it has many healthy roots.

It only cost $10, so it isn't a financial issue if I got rid of it.

I'm also going to some orchid shows in the next few months, so having more space for plants with more pretty leaves would be nice.

What should I do? Chuck it or keep it?