Yep. Most people like Diablo 2 for the treasure hunt aspect. It's got LOADS of items. Guild Wars doesn't have a fraction of those items. The same crappy wands, staves, and swords drop over and over. Also, you have to create your armor specifically for your class via materials that drop from monsters.
The best thing about GW is the multi class system and the ton of skills you can get. You can equip 8 skills at a time before a mission, so it's important to find a good build that is effective and fun. Each class (6 total) has around 50 skills, so there are many different builds to play with.