Based on the data provided, we can observe that the coin in question has performed well in previous auctions, with final prices exceeding the starting price and estimated price in most cases. Additionally, the coin's condition is rated at 80 (MBC+), which is positive.

The average auction price for this coin has been 49.79 euros, and the starting price for the next auction is set at 30 euros. Considering the good condition and strong performance in previous auctions, we could estimate a maximum purchase price of around 60-70 euros for this coin in the upcoming auction.

It is important to note that the final auction price may vary depending on factors such as demand at that specific time, competition from other bidders, and interest in the coin in question.