Are there any advantages to using higher priced sealers?
Linseed Oil makes a great concrete sealer/sealant.
The only caution you should take is the applicator that you use. Make sure you submerse the applicator in water after completion. Linseed Oil is highly flammable.

https://www.doityourself.com/stry/using-boiled-linseed-oil-as-concrete-floor-sealant