I own the 7D and it was through much research and shopping I settled on the 7D as an upgrade from my 450D (XSi).
When I purchased it this past January with the 28-135 kit lens I paid $1052.00 out the door! I bought it at the Navy Exchange (Tax free) and was able to score it on sale then added Canon Rebate which had been ongoing at the time, and added 10% off because I opened the store credit with Zero interest for 12 months and you could not wipe the grin off my face. As a matter of fact the grin is still there!
If I were to compare my 7D to my 450D there would be so much to say about so many areas that are better, but it boils down to this for me.
1. Far better photographic quality no matter what situation I find myself in when compared to my 450D (which I still own) and afterall isn't that really the point?
2. Far more efficient functional access (fewer steps, easier operation).
3. The 100% viewfinder and LED overlay graphics in the viewfinder are great for me.
I would not even consider myself to be an amatuer yet. I take pictures, I enjoy photography and I am learning, (don't ever want to make a dime from it!) but this camera makes me look good, sometimes really good, and I like that. At least in photography the equipment does matter (at least at my level it seems).
For me the biggest contender was the 60D but I am not into video, and it seems to me that the 60D went down in scale to more closely pair up to the "Rebel" series rather than going up towards the Pro series camera's and that is what brought me to the 7D ultimately.
I do have several what I consider "entry level" Canon lens that I play with and I am now trying to decide on the model of my first "L" series lens that should take my photography to a new level (hopefully). I have NO regrets with my purchase and I have bought the BG-E7 battery Grip and already owned a 430EX II flash which may also soon find itself in the company of another one
I am also methodically reviewing high quality substantial tripods since the two I own while minimally adequate do seem to be stretched to the limit to properly hold the 7D with BG and Flash with even my 55-250 IS zoom.
Long and Short If you haven't already bought it, hurry up cuz you're mising out!!