Krone tedder

I need opinions on krone tedders, theres a sell coming up and a krone 5.50x4/7t ( i think thats the numbers) is in it. Is this a good tedder? I talked with a dealer about it today and he said its a older style tedder and that the newer ones are built different and he lead me to believe the newer ones are better. He said i could get a new one for $8000 with 0% for 60 months, my question is if i could get the one at the sale for 3-3500 should i jump on it? I only have round 50-70 acres of hay land so i dont know if the new one is the best route to go. Whats yalls opinions?

Krone tedder