Yes, I agree, nothing against the Sig, I love the Sig P226 but I would maybe save that for down the road if you still want one. Plus, the Glock is not only great for beginners, it is also used by top professionals around the world. If you ask someone who goes into harms way and carries a pistol, whether they are Military, Private Security Contractor, Law Enforcement, etc., which pistol they would choose, especially if they had to choose a stock, out of the box pistol and rely on it, you will find a very large percentage will say Glock.
I was at a training course outside of the country which was all guys from specialized Military and Law Enforcement units, mostly Americans but there were a few people from other countries thrown into the mix. It turned out, every single person was using a Glock, including the trainers who were also still doing Private Security except for three guys who had Sigs. Those guys had to use Sigs for their job, they had no choice. The Sigs ran fairly good for the course but they all said they preferred Glocks and one of the days when were were doing a lot of pistol work, they all had to clean and then re-lube their Sigs part way through. None of the Glock guys had to do that.