Not sure about the exchange rate, but an average '98 CR250 would probably sell for less than $1,500 US. In excellent condition with plenty of spares and aftermarket parts it would go for more, maybe $2,000 US.
The stock suspension is not so great and the magazines said the frame was too stiff (typical magazine BS - my '99 has the same frame and it works like dream and I am old and slow). The bike can be made to work very well, especially if the suspension was done right.