Buying new US stamps from the website

I just went to the USPS website, and was about to order some new stamps, as I fallen behind a little bit.  I ended up scrapping my order for now, because I was, again, having to order all these full sheets of stamps that I didn't not want a full sheet of (hip-hop stamps, for one, I'm looking at you).    Why did they take away the ability to only purchase a block of 4, if that's what you wanted?  It's so irritating.  I think I have a post office near my office that obliges me and breaks up sheets, if they are allowed, so I think I need to make a trip there.  I have to deal with this before I get too far behind.  

Please tell me I'm not the only one who's annoyed by this practice?  Funny story:  I recall one time when I first started collecting, back when I was 12, and I went to the post office on my bicycle.  They had one new issue that I didn't have yet.  "How many would you like", the clerk asked me.  "Oh, just one!".  She looked at me like I'd grown a second head.  But I gave her my 10 cents, I got my stamp, pedaled home, and added it to my Ambassador album.  Since I didn't know what a mount was yet at the time, I'm sure I used a hinge on the mint stamp and ruined it.  What the heck did I know?  I was 12!  I also recall another trip, bringing home a se-tenent block of 4 stamps, on my bike, carrying it in my fingers.  I still have it, with the gum smeared and smudged with my fingerprints.  lol  Of course, I've since replaced it in my album with something in a little better shape.