No. At least not the ones from 2013, they are not old.
Maybe someone would pay some premium for the first blocks mined, but not from 2013 coins.
The best you can do is claim clams and maybe other altcoins, but not much more
What are those other Alt coins that can be claimed ?
The only other altcoin that I know of which uses a similar distribution method to that of CLAMs is Qeditas (
link) which is still under development and has not been launched yet. The main difference between their distributions is that in the case of Qeditas, users' balances will be proportional to the amounts that they had in the Bitcoin blockchain rather than the fixed 4.6 CLAMs per address:
The current plan is to take a snapshot of the Bitcoin block chain up to (not iincluding) the block at height 350,000. At this point 2/3 of the Bitcoin distribution will be complete. This block should be published on (approximately) March 31, 2015. If you have bitcoins under your (sole) control, then you will have a corresponding initial distribution in Qeditas. Your part of the initial distribution will be easiest to claim if it is in an ordinary pay-to-public-key-hash (p2pkh) address. I will include pay-to-script-hash (p2sh) addresses as well, but the claim process will be more involved and in a small number of cases p2sh claims may fail if they make use of uncommon parts of the script language.
The primary reason for this pre-announcement is to give everyone a chance to ensure their bitcoins are under their control (not on exchanges) and (preferably) in a p2pkh address. If your bitcoins are not under your control as of block 350,000, then the corresponding Qeditas units will also not be under your control.
My understanding is that the CLAM project gave a fixed amount of clams (about 4) to each address with a "non-dust" amount of bitcoins, litecoins or dogecoins on a certain date in 2014. Those with many bitcoins in few addresses got few clams. Those with few millibits in many addresses got many clams. This means there was a significant redistribution of wealth. Qeditas will use a snapshot intended to preserve the wealth distribution in the Bitcoin block chain. That's the main difference between the approach of CLAM vs. a spin-off in the sense of Peter R. (Additionally, the snapshot will be only of Bitcoin, not Litecoin or Dogecoin.)