Sometimes even I don't read my email, so probably nobody else is going to either. However, if you think they might be out to get you and jumping through all kinds of hoops to encrypt your message doesn't sound silly, by all means do.

608CA713	4096-bit	RSA	October 14th, 2004
0B3D8966	2048-bit	ElGamal	June 20th, 1999
3F132315	1024-bit	RSA	August 1st, 1996