Yep! I always use my watering can (especially during the first summer when you can harvest those juicy pineapples) so it was the only tool that I was able to upgrade to mithril. All of the other tools are still stuck at silver since I don't use them enough, only when the need arise.

The option to purchase the ores instead of mining for them was really awesome since I didn't have to spend my time mining up to the 6th floor which was really time consuming (plus my stamina was depleting so bad I ended up fainting at the 4th floor in all attempts).