Well I had not even looked at the HF compressors.. I thought they might be junk.. That is pretty impressive that you have been using yours for that long.
That one is 50lbs.. I am thinking half that weight.. I will see what else they have.
There is also a Senco I am looking at.. It is one gal. 20lbs with an aluminum tank.
Walmart sells a cambel haulfeild.. (I will never know how to spell that!) for like $50. I don't know if I would trust that at all. It is only 15lbs. Probably would have a hard time airing up a tire.