I am happy that Elite is now on Steam, as it will bring new people and an additional revenue source. All good stuff. E : D was the first non-Steam game I purchased in at least 2 years.
Having Frontier jump through hoops to give me a Steam key so I can keep Elite in one nice, neat place with my other games would be really convenient, but it's a nice-to-have. It's not worth it for me to buy the game again to have it in Steam, so I don't expect Frontier to make huge efforts to satisfy my desire for convenience.
If they do it anyway, awesome. If not, well, I'll be too busy trying to escape an inconvenient interdiction to give it much more thought!