I have the Stihl blower vac Drifter mentioned above for pulling leaves out of my wife's flower/rose beds and leaves caught between the shubs and foundation. It's an incredible time saver from pulling leaves out of areas where you can't easily blow them out into an open area. The Stihl steel cutting/mulching blade seems to do a better job than comparable vacs made by Echo or Husqvarna. The blower action is great, but would be tiring if there is a big area to do,
For any bigger open area you would be be much better off with a backpack blower. Either the Echo or Stihl ~50cc models should last you many, many years ...if... you run them dry and don't let gas/oil sit in them for prolonged periods, and use Stabil in addition for safe measure. That's the big problem with an occasional use item - the varnish buildup if you aren't compulsive.
Just one more thought for you. Do you just mulch as many leaves as possible back into your lawn with a mulching mower? I've gotten more and more bold over the years mulching them back in with multiple passes with a riding mower, and doing it repeatedly during the fall so there is not a huge leaf buildup.