I try to buy coins that I believe will have a long term value, and will risk a bear market because I keep a large cash position as well. The reason is you have to hold for 1 year to get long term cap gains rate. If you sell everything on short term basis, you are paying quite a lot in taxes. That loss to taxes is baked in the cake. Whereas, if I go long on a good, solid project, I can minimize my taxes.
And make sure you are holding a great fundamental coins if you're planning to hold for a year and invested a large cash into it, because sometimes a common coin with no great fundamental will crash or even going zero if we hold it that long because there are a lot new coins which people invest and the old coins will be left if the coin is not having a good plan in the future.