If the Doosan is similar money new as Liam says it is then new kit prices are shooting up. That's some serious increase.
That said, what did they offer you/what can you get for the Doosan?
Also, you mgiht already know, but the TB210 is I think 76cm wide rather than the 71cm of the Doosan. Doesn't sound much but you only use a micro when access is tight and I have scratches down both sides of mine... I really wanted to try to TB210 as on paper it's a really powerful little piece but forced myself to discount it due to width and to be fair I'm glad I did.
Tb210 is meant to be 750mm was part of the issue and still being on 25mm bucket pins. Pins not a massive issue but if needing to hire a breaker or auger everyone local is 30mm up.
To be fair the dx10 is meant to be 710 but it's at least 720 due to the stupid drop down arms not locking tight into position
2k price rise in two years is a bit mental to honest, but no stock till April so suppose it supply and demand
If it was less than the used one on eBay would have been a no brainer and would have advertised the dx10 just don't think could justify the the extra
not had a price on trade in but imagine they would have my pants down.
A year older with twice the hours E10 was up for 11.8k plus vat it sold but no idea how close to list price