If one of these is the 61 first card you've increased the likelyhood of finding one of the tools in your box during a game right? I think that as long as the deck is proportionally effective you can't discount the 61st card being added to certain decks.
Here's where people are missing the point of the 61st card debate. They are using a bit of a false analogy. The reality is, while numerically, the last card added is the 61st card, in terms of card strength this is not so.
In discussion about 60 cards vs 61 cards, you've got to look at the relative strength, value and contribution of each card in the deck. Not just at what order you decided to count the cards up.
So, we have this theoretical deck of 60 cards. The cards are A1-A10, B1-B10, C1-C10, D1-D10, E1-E10 and F1-F10. The closer to the beginning of the alphabet a card is, the stronger it is. Within the letter groups, the lower the number, the stronger it is. So A1 is the strongest. F10 is the weakest. A9 is stronger than B1.
Now, you come across card A-11. You add it into the deck and suddenly have 60 cards. Is that your 61st card? No. E10 is your 61st card now. Its still the weakest.
You don't throw in card A11 and say, "Hey, A11 is so powerful that its pros outweigh the cons of running 61 cards." You look at it and say, "Ok, I want to add A11 because it can help this deck. Now, is the value of E10 strong enough that the pros of keeping it in the deck outweigh the cons of keeping it in the deck?"
Obviously deck building is not that cut and dry that you can pigeonhole every slot in the deck to determine a cards relative strength so easily. But it does illustrate the point that adding a 61st card is not necessarily adding a 61st card. It is more along the lines of further tuning your deck.