So I have been trying to get a copy of the Canon 28-70 2.8L for some time now. A few weeks ago they were selling pretty quickly for around $750-$800. On eBay they are going for anything around low 7's to a $1000 for one and typically starting bids are in the $900 range. My question is simple, is this lens that good that I should consider buying for around $800 since I am having a hard time justifying buying the newer 24-70 for around $1350 new or $1100 used? But just did not know if the lens is as good as people swear and if $800 for a 10+ year old lens is a bad move on my part? I don't need the extra 4mm since I shoot with a FF camera so that is not a concern.
Curious to hear other opinions. Thanks for you advice!