your company name has a TM on it? if so, when has the TM (trademark) been established? if the TM was assigned to your company BEFORE the domain owner registered his domain, you should contact the domain holder and enforce your legal rights.
If you don't have a TM on your company name, i would consult with legal counsel and see what can be done. However, since the page is just parked its essentially not interfering with your business, thus giving you only a small chance to use this as an argument.
My tip:
You may just consider to negotiate the 1500 down to something more affordable, since the attorney fees are not going to be much below this amount anyways. Or, find a different online approach and get creative, once the domain owner realizes that you found a way around it, the sales price may magically get lowered.
:imho: