I recently bought some inexpensive bookshelves at Big Lots; they look nice, but since I haven't had them long, I can't comment on their durability.
I do have a four-shelf bookcase that I bought many years ago at Staples. Here again, it's the pressed wood. They have held up extremely well, we have lots of heavy books on it, and it still looks great, and actually doesn't look like "cheap" furniture. I can't remember what I paid, but it was comparable to prices at the Walmart, Target, Kmart type places, possibly even cheaper, as I always watch for sales when purchasing these type of items.
I would try checking the other office supply places as well. I think office supply places would probably try to carry durable furniture for their business clients.
I do have a four-shelf bookcase that I bought many years ago at Staples. Here again, it's the pressed wood. They have held up extremely well, we have lots of heavy books on it, and it still looks great, and actually doesn't look like "cheap" furniture. I can't remember what I paid, but it was comparable to prices at the Walmart, Target, Kmart type places, possibly even cheaper, as I always watch for sales when purchasing these type of items.
I would try checking the other office supply places as well. I think office supply places would probably try to carry durable furniture for their business clients.