the glock is the easier choice: you put down $549, chose small, med or large and a caliber. nite sights? add 10%.
the 1911 for a similar degree of reliability will cost more, but still under $1000.
i would suggest the 1911 for the knowledgeable shooter--one who want to practice often
but years down the road, the 1911 may get handed down where as the glock got traded.
yet one must acknowledge that the glock out of the box is reliable, accurate and affordable.