I guess it would depend on what you use the Internet for. If you play games, download lots of information, sometimes even communication applications (I'm thinking Skype, etc.), watch Hulu movies, or stream anything online, 1.5Mbps might drive you insane unless you buffer your streaming feeds. I know it would drive me nuts. RARELY do you get the advertised speed consistently.

Also, if you have your own website, are uploading pictures/music/movies/data to the web, 256 may not cut it, either.

But for $30, if what you mostly do is surf cigarsmokers.com, read e-mail and download the occasional CD, go for it. Nothing is to say you can't upgrade after a month or two of not liking it.