"Inexpensive floor finish" can be an expensive oxymoron. In the last few years there has been a massive improvement in VCT maintenance similar to the propane machine's introduction in the late 70's.
Just when strippers were getting really great, improved systems made chemical strippers obsolete.
I used to love putting down 8 or 9 coats of a premium finish like Pioneer Eclipse Diamond, or Buckeye Castleguard, and then buffing it.
The new generation finish I noted above gets the same results, and better, with only two coats. Holds up well.
Those two items save WAY more time and expense than the products cost. Makes vct fun and profitable.