I think that most listeners who have never heard the Celestions would probably prefer one of many newer/used $2000 speakers; however, having lived with and enjoyed them for so long, that might not be true for you. I have never been happy with the Vandersteen 2 or 3 series speakers.
Should I try to improve speakers at $2000.00 range
System:
SPEAKERS...Celestion SL700SE...old but Like new
AMPS...Quicksilver 90 watt silver monos
PREAMP...Quicksilver LS non-remote...new model
DAC...Rega...Theta Miles as transport
CABLES... Kimber 8tc/8tc bi-wire (speakers), Kimber kcag and silverstreak (interconnect), Kimber 75 coaxial (Miles to DAC)
SPEAKERS...Celestion SL700SE...old but Like new
AMPS...Quicksilver 90 watt silver monos
PREAMP...Quicksilver LS non-remote...new model
DAC...Rega...Theta Miles as transport
CABLES... Kimber 8tc/8tc bi-wire (speakers), Kimber kcag and silverstreak (interconnect), Kimber 75 coaxial (Miles to DAC)