I was just reading another post about a couple who can only have one hour of open bar. A lot of the responses said to have a dry wedding instead, that it is rude to have guests open their wallets. I am planning on having a cash bar, because I can't afford open bar, but I want the option of alcohol to be there for guests if they choose to drink. I have also been to several weddings where this is the case and I have never thought twice about it. So I guess my question is, is it more polite to have absolutely no option of alcohol or just have the guests pay for whatever drinks they would like?