Well that was the idea of Suzuki. To offer one a good beginners or anyones 500cc vertical twin. Next the owner might upgrade to the SV-650 or 650s & on to other models OR some might be quite content with the 500.
Sensible thinking upon their part & the pity is the to largest m/c makers being Honda & Yamaha did not think of it.
I saw a GS500F in person for the first time yesterday. I was going to check out the Ninja 250 and 500. I forgot that they also sold Suzukis there and didn't even think about looking at the GS500F until the salesman asked if I had ever checked one out. I thought it looked very nice in person.