IMHO, one the biggest differences between the top shelf tools and the economy tools is the quality of the picks. With this in mind, I think it is better to buy older, but high quality tools. Charlet Moser Axar, Black Diamond Rage, Grivel Rambo are all solid tools and can be found used for reasonable prices. Many climbers will advise you to buy the best pair of tools you can possibly afford, and there is logic to that. The reality, however, is if you get a generation-old pair of tools you will have a lot improving to do before you out climb them.