Screwdrivers capable of opening up every Thinkpad I've ever used are included in every generic screwdriver set I've ever bought for "jobs around the house" (tightening screws on furniture, opening up toys to replace batteries [sometimes requires pretty small screwdrivers], mounting WiFi routers on the wall, ...).

I believe the exact opposite is true for the two MacBooks my wife has owned.

Like fpgeek, I also have a thinkpad, and the generic 'fix-it' kit my housemates have under the kitchen sink has screwdrivers that fit it. And if I'm caught short somewhere, any hardware store carries something that can help - which is not the case with pentalobe screwdrivers.

If you want to terminate an RJ-45, then sure, you kinda need an unusual tool to do it neatly and properly - it's an unusual item. But a specialised tool to undo a screw? Yuck.