I regret not getting BCH and LTC earlier, especially BCH, but just a little bit. However, I think SpectreCoin (XSPEC) will make up for that regret by giving me huge returns in the future. 2018 is going to be the year of privacy coins (McAfee). XSPEC has a quality developer with an experienced cryptographer, as well as an active community. Right now, given the price of other privacy coins (and the necessary privacy technology that most of them don't have but XSPEC does), XSPEC should be much higher than its current $1.50ish, and I fuly expect it to reach much higher values over the next year.

If you're interested in learning more about the coin, you can check the CoinWiki (URL is in my signature) and join the project's Slack channel. You can also check out the project's GitHub.

Regardless of what you end up doing in the future, and what coin you end up investing in, I hope you're able to make good returns on your investments. Good enough that you don't feel so bad about missing out on other coins. :-)