mmm 500 mm very tempting

im watching a sigma 300mm f2.8d apo on ebay at the moment its only at £150 but 6 days to go, ive got a feeling its going to go batshit, i borowed the 70-200 f2.8 off al at rotorstock it was luuuvely so much quicker than my old 70-300 but so much more money.
check out this bad boy!
afs 400mm f2.8 ED2 a snip at nearly £6000

a lotto win and i might be tempted