My cats love moving toys like roaches!! Although funny thing is roaches have adapted to cats - they play dead and the cat pushes with their paws and the roach doesn't move and the cats think it is dead and no fun and walk away - then the roach gets up and runs away. Actually this was funny when I watched it - no wonder those buggers have been around so long!!! Now around me no use in playing dead because I got a big bad shoe that is going to squash you so run run run.... Hubby sprays outside around the house - maybe you can spray outside around the door - all around it - if your cats are indoor only cats. Also we bomb the garage so that they won't come in that way. Be careful on the roach hotels - mine are ferro ant traps that work great - look the same as roach motels - but I don't stick them down so I have found them in the middle of the floor as a new cat toy my MEka thinks... This worried me because the powder inside can come out.... I'm wondering the same thing as you... In an apartment I'd spray outside as much as you can - the idea is to keep them from coming in at all... Debbie