Based on the data provided, we can observe that the coin in question has had an average auction closing price of 58.83 euros in previous auctions. Additionally, its current condition is estimated at 80 (VF+).

Considering that the starting price for the next auction is 60 euros and the historical average starting price is 38.25 euros, we can see that the closing price tends to be higher than the starting price in most cases.

Given that the coin has been auctioned 38 times in the past and sold 30 times, we can infer that there is interest and demand for this coin in the collectors' market.

Taking all these factors into consideration, as well as the fact that the coin is in good condition (80 - VF+), we could estimate a maximum purchase price around 70-80 euros. This is based on the history of closing prices and the demand the coin has shown in previous auctions.