I own Gen's and they have their place. I have recently sworn off high end Gens (even though I have some) from the Rolex/Omega/Panerais of the world and instead have fallen in love with the more Boutique brands like Doxa, Ball, Tutima, Muhle, etc. For the price of two or three REPS, you can have an awesome Gen from some of these makers.
Funny, I am actually just the opposite and look for the ubiquity of ETA power. The reason being, after they are out of warranty-- I can EASILY fix them myself. I have had horrible experiences with Ebel and Omega in-house movements recently. Also, when something goes wrong on an in-house, be prepared to be without your watch for months.
Also, Vintage Gens are another great area to explore.