Are you sure Lowe's doesn't have them? I doubt they have the 7424 but they should have the 7336SP. DON'T call out there and ask them...you have to go to the power tools section yourself...look in the oribital sanders area. If you call out there, some air headed teenage kid (nobody get mad, I'm 17 myself, lol) will go look, but I am almost certain they will tell you they don't carry them. Good Luck...I just got mine today! :bounce
Also, that model usually comes w/a 5" counter weight unless purchased through Costal Tool, and they will toss in a 6" counter weight. But save on S&H charges and goto Lowe's...they really should have them there...just make sure you park WAYY out in the parking lot so nobody dings your car :shocked