I think you should mine it and get some of those coins.
Right now only 8GB+ gpus work fine. Big farms that have 4Gb cards are probably not switching to grin at the moment, especially if on Windows. As better mining software comes out allow older cards to mine Grin properly, difficulty will continue to rise. There were talks in the grin forum about delaying the use of 6Gb cards to prevent those diff spikes.
Also be prepared to install the wallet about 16million times, cos it's about as user-friendly as drinking battery acid.
Haha, yeah the wallet kinda sucks, and only MacOS and linux atm. But you don't need the wallet to mine.
You only need to mine on the pool, request a payout, upload the transaction file to TO which will produce a response file you upload back to the pool and you coins will be deposited on TO.