$450 to spend! What to buy?

[KCRfan1]

I'm just looking for thoughts and opinions with my question.

I have $450.00 to spend, and am waffling on a direction to move.

There's the " buy what you like ", but a '62 Maris at $100 won't do much in value for the next few years. Aaron is very under valued, as is Frank Robinson. A '55 Aaron is a strong option, however, Robinson is more " meh " even though his cards are extremely inexpensive.

Looking at Mantle is obvious, and there's always demand which will drive prices.

So, is it one card or four at a $100 a pop? This may be the only time I could spring for an expensive card ( to me ) that I could never afford again for the whole amount of $450. I would like to see the cards increase in value, but it's a crap shoot and ultimately I just collect.

If you had $450, what would you look at and give strong consideration to buying?

What cards are glaringly undervalued right now?

Looking forward to your thoughts!