Should I clean my vacuum or buy a new one?

My vacuum is a decent quality Bissell brand vacuum cleaner, but it started making more noise and seems to be blowing some dust out. I could try taking it apart and cleaning the whole thing up and buy new filters. Or, I could just get a new one.

What do you think? The new ones similar to mine are up in the $200’s. The cheaper ones might be sufficient though. I’ve had this vacuum for about 9 years.