JD800 Reliability

[flat earth]

The main problem with the JD800 is the keybed.

They made a huge design cock-up by using some ridiculous low melt point red glue that holds in the weights inside the indiviadual keys. This, after time, in a hotish climate (even in UK ) melts and drips all over the damping stripe and contact rail. The keys become sticky and its a nightmare to play.

It can be cleaned up though. Roland JD-800 sticky keys service / repair

The sliders can get dusty, causing parameters to go crazy, adjusting themselves, but sometimes a good hoover and rapid 'back & forth' movement can get them back to normal.

[Telehorse_UMA]

JD990 usually goes for 400 - 500 EUR over here. So 600$ would be a little bit above average, but still acceptable I'd say. Don't know how often they turn up in Oz though.

[KevBKeys]

Mine is still working great. No sign of the red glue melting ...yet. The JD-800 has a diagnostics routine to check the sliders and switches are working over their full range which is useful.

[Pro5]

uk ebay:

JD-800 £300 - £500 (the latter usually involving shill bidders - usually top out at £450)
JD-990 £350 - £550 (they often have a bidding war as the rack is very desirable, to some)

[fooddude]

The last 2 JD990's real-auction that ended in US ebay ended around $260us...i was one of them

[spaceman]

Mine ( Jd-800 ) is still going strong. Although i barely use it nowadays.