Guitar Strings

I recently bought my father's church a new hollow electric guitar. The one that I bought twelve years ago already needs an upgrade. It was not a high end guitar so I was surprised that they were able to make good use of it that long. Along with the new guitar, of course I also bought an extra set of guitar strings. Surprisingly, I had to go to a few stores before completing the set of strings. I had to buy one string from one store to another. I am not sure if they really don't sell super alloy 5 string sets or it just happened that all of the stores that I went to were out of stocks.