Depends ;) what you mean by 'stocking up'. You may be one of the luckier ones who only need supplies for a short term, and only a few a day. After the catheter came out, I used only about
3 pads a day for about
two weeks, then two, now only one. So all told not a huge expense.
I get TEENA FOR MEN, I found that these are the most comfortable. I buy them in a box of 48(?) for about
$22 (US).
I wouldn't go crazy at first. Also remember that Boxers dont work well with the pads, You'll need breifs.
Good luck with the surgery.
PS, are you using NJ center for PC and Uro in Hackensack/Maywood? Thats who did mine.