My idea exactly. If you start flying the hours just to stay legally current, you're just throwing good money after bad. If you just for the sheer love of it make the hours without thinking about staying legally current, you'll have a much more enjoyable hobby.
And a Licence Proficiency Check at the end of the two-year period can normally be completed in less than an hour anyway, while the dual hour with an instructor is exactly that - a minimum of one hour. So doing an LPC may well be cheaper than doing your one-hour lesson for your revalidation by experience.