I'm personally not a great fan of araldite for glass repair - cheaper (i.e. non conservation grade) epoxies tend to yellow over time - they're also a pain to remove.
I'm not sure about how well off the counter glass glues perform in the longer term, however, I've used by Loctite glass bond and the cheaper but just as effective Wilkinson own brand glass glue to repair inexpensive items and have found them both to be easy to use and to show no obvious discolouration after several months.