I have never seen that many for sale at one time.
If I were selling I would wait a while (too much supply will pull the price down).
One the other hand, if I were a TR8 fan and was looking for a good time to buy, this could be a great time to jump into TR8 ownership (none of these are mine and I have no intentions of selling mine in the near future).
Rob
http://cgi.ebay.com/ebaymotors/Triumph-TR8-TRIUMPH_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c39Q3a1Q7c66Q3a2Q7c65Q3a12Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q2em14QQhashZitem170264844307QQitemZ170264844307
http://cgi.ebay.com/ebaymotors/Triumph-1980-Triumph-TR8-Restored-Low-Miles-Outstanding_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c39Q3a1Q7c66Q3a2Q7c65Q3a12Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q2em14QQhashZitem290262509485QQitemZ290262509485
http://cgi.ebay.com/ebaymotors/Triumph-GENUINE-1980-TRIUMPH-TR8-V8-CONVERTABLE_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c39Q3a1Q7c66Q3a2Q7c65Q3a12Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q2em14QQhashZitem110292557451QQitemZ110292557451
http://cgi.ebay.com/ebaymotors/Triumph-TR8-TRIUMPH-TR8-CONVERTIBLE_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c39Q3a1Q7c66Q3a2Q7c65Q3a12Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q2em14QQhashZitem280269656814QQitemZ280269656814
http://cgi.ebay.com/ebaymotors/Triumph-Triumph-TR8-Rare-Fuel-Injected-41000-Miles-No-Rust-Nice_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c39Q3a1Q7c66Q3a2Q7c65Q3a12Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q2em14QQhashZitem300261824819QQitemZ300261824819
Rob